Add missing expectations before calls to visit

There were many cases where we were clicking on a link or (most of the
time) a button and then calling the `visit` method. In the past, it
worked just fine because clicking on buttons usually results in non-AJAX
requests, meaning that the test waited for the request to finish before
continuing.

That's no longer the case, though. In the last few months/years (not
sure since when) we're getting sporadic failures because the test
doesn't wait for the request to finish before making another request
with the `visit` method. This sometimes results in flaky tests.

Some of these tests have recently failed in our CI. Here are a few
examples (note the numbers don't follow an order because these tests
failed in different jobs):

```
1) Admin edit translatable records Current locale translation does not
   exist For ActivePoll Shows first available fallback
   Failure/Error: expect(page).to have_content "Sondage en Français"

     expected to find text "Sondage en Français" in "Language: \n
       \nEnglish\nDeutsch\nEspañol\nFrançais\nNederlands\nPortuguês
       brasileiro\n中文\n       Go back to CONSUL DEMOCRACY\nCONSUL
       DEMOCRACY\nADMINISTRATION\nMenu\nNotifications\nMy content\nMy
       account\nSign out\nProposals\nDebates\nComments\nPolls\n
       Collaborative Legislation\nParticipatory budgets\nVoting booths
       \nSignature Sheets\nMessages to users\nSite content\nModerated
       content\nProfiles\nStatistics\nSettings\nProposals dashboard\n×
       \nPolls description updated successfully.\nList of polls\nPolls
       description\nCreate poll\nThere are no polls."

2) Public area translatable records Existing records Update a
   translation With valid data Changes the existing translation
   Failure/Error: expect(page).to have_field "Debate title",
                  with: "Title in English"
     expected to find field "Debate title" that is not disabled but
     there were no matches

2) Admin collaborative legislation Update Edit milestones summary
     Failure/Error: expect(page).to have_content "There is still a long
                                                 journey ahead of us"
       expected to find text "There is still a long journey ahead of us"
        in "Language: \n
        \nEnglish\nDeutsch\nEspañol\nFrançais\nNederlands\nPortuguês
        brasileiro\n中文\n       Go back to CONSUL DEMOCRACY\nCONSUL
        DEMOCRACY\nADMINISTRATION\nMenu\nNotifications\nMy content\nMy
        account\nSign out\nProposals\nDebates\nComments\nPolls\n
        Collaborative Legislation\nParticipatory budgets\nVoting booths
        \nSignature Sheets\nMessages to users\nSite content\nModerated
        content\nProfiles\nStatistics\nSettings\nProposals dashboard\n×
        \nProcess updated successfully. Click to visit\nBack\nAn example
        legislation process\nInformation\nHomepage\nDebate\nProposals\n
        Drafting\nFollowing\n1 language in use\nCurrent language\n
        English\nSummary\n    Format\n    ◢\n Milestone\nManage progress
        bars\nDon't have defined milestones\nCreate new milestone".
        (However, it was found 1 time including non-visible text.)

3) Admin collaborative legislation SDG related list create Collaborative
   Legislation with sdg related list
     Failure/Error:
       within("tr", text: "Legislation process with SDG related content") do
         expect(page).to have_css "td", exact_text: "17"
       end

     Capybara::ElementNotFound:
       Unable to find css "tr"

4) Valuation budget investments Valuate Feasibility can be marked as
   pending
   Failure/Error: expect(find("#budget_investment_feasibility_undecided"))
                  .not_to be_checked

    Capybara::ElementNotFound:
      Unable to find css "#budget_investment_feasibility_undecided"

3) Custom information texts Show custom texts instead of default ones
   Failure/Error:
     within("#section_help") do
       expect(page).to have_content "Custom help with debates"
       expect(page).not_to have_content "Help with debates"
     end

4) Admin budgets Update Deselect all selected staff
   Failure/Error: expect(page).to have_link "Select administrators"
     expected to find link "Select administrators" but there were no
     matches

3) Admin polls SDG related list edit poll with sdg related list
   Failure/Error:
     within("tr", text: "Upcoming poll with SDG related content") do
       expect(page).to have_css "td", exact_text: "17"
     end

   Capybara::ElementNotFound:
     Unable to find css "tr"

4) Admin polls SDG related list create poll with sdg related list
   Failure/Error:
     within("tr", text: "Upcoming poll with SDG related content") do
       expect(page).to have_css "td", exact_text: "17"
     end

   Capybara::ElementNotFound:
     Unable to find css "tr"

5) Admin custom images Image is replaced on admin newsletters
     Failure/Error:
       within(".newsletter-body-content") do
         expect(page).to have_css("img[src*='logo_email_custom.png']")
       end

     Capybara::ElementNotFound:
       Unable to find css ".newsletter-body-content"

6) Admin custom images Image is replaced on front views
     Failure/Error:
       within("#map") do
         expect(page).to
           have_css("img[src*='custom_map.jpg'][alt='Districts list']")
       end

     Capybara::ElementNotFound:
       Unable to find css "#map"
```

spec/support/common_actions/users.rb

@@ -39,8 +39,10 @@ module Users
 
     fill_in "user_login", with: user.email
     fill_in "user_password", with: user.password
-
     click_button "Enter"
+
+    expect(page).to have_content "You have been signed in successfully"
+
     visit new_officing_residence_path
   end
 

spec/system/admin/budgets_spec.rb

@@ -435,6 +435,9 @@ describe "Admin budgets", :admin do
       expect(page).to have_link "Select valuators"
 
       click_button "Update Budget"
+
+      expect(page).to have_content "Participatory budget updated successfully"
+
       visit edit_admin_budget_path(budget)
 
       expect(page).to have_link "Select administrators"

spec/system/admin/legislation/processes_spec.rb

@@ -314,6 +314,8 @@ describe "Admin collaborative legislation", :admin do
       fill_in "Categories", with: "recycling,bicycles,pollution"
       click_button "Save changes"
 
+      expect(page).to have_content "Process updated successfully"
+
       visit admin_legislation_process_proposals_path(process)
 
       expect(page).to have_field("Categories", with: "bicycles, pollution, recycling")
@@ -322,6 +324,8 @@ describe "Admin collaborative legislation", :admin do
       fill_in "Summary", with: "Summarizing the process"
       click_button "Save changes"
 
+      expect(page).to have_content "Process updated successfully"
+
       visit admin_legislation_process_proposals_path(process)
 
       expect(page).to have_field("Categories", with: "bicycles, pollution, recycling")
@@ -337,6 +341,7 @@ describe "Admin collaborative legislation", :admin do
 
       click_button "Update Process"
 
+      expect(page).to have_content "Process updated successfully."
       expect(page).to have_current_path admin_legislation_process_milestones_path(process)
 
       visit milestones_legislation_process_path(process)
@@ -397,6 +402,9 @@ describe "Admin collaborative legislation", :admin do
 
       click_sdg_goal(17)
       click_button "Create process"
+
+      expect(page).to have_content "Process created successfully"
+
       visit admin_legislation_processes_path
 
       within("tr", text: "Legislation process with SDG related content") do
@@ -411,6 +419,9 @@ describe "Admin collaborative legislation", :admin do
 
       remove_sdg_goal_or_target_tag(1)
       click_button "Save changes"
+
+      expect(page).to have_content "Process updated successfully"
+
       visit admin_legislation_processes_path
 
       within("tr", text: "Legislation process with SDG related content") do

spec/system/admin/legislation/questions_spec.rb

@@ -131,6 +131,9 @@ describe "Admin legislation questions", :admin do
       expect(page).to have_field fields_for(:en).last[:id], with: "No"
 
       click_button "Save changes"
+
+      expect(page).to have_content "Question updated successfully"
+
       visit edit_question_url
 
       expect(page).not_to have_field fields_for(:en).first[:id], with: "Yes"
@@ -154,6 +157,9 @@ describe "Admin legislation questions", :admin do
         find("#nested_question_options input").set("Opción 1")
 
         click_button "Save changes"
+
+        expect(page).to have_content "Question updated successfully"
+
         visit edit_question_url
 
         expect(page).to have_field(field_en[:id], with: "Option 1")
@@ -178,6 +184,8 @@ describe "Admin legislation questions", :admin do
 
         click_button "Save changes"
 
+        expect(page).to have_content "Question updated successfully"
+
         visit edit_question_url
 
         expect(page).to have_field(field_en[:id], with: "Option 1")

spec/system/admin/poll/polls_spec.rb

@@ -545,6 +545,9 @@ describe "Admin polls", :admin do
 
       click_sdg_goal(17)
       click_button "Create poll"
+
+      expect(page).to have_content "Poll created successfully"
+
       visit admin_polls_path
 
       within("tr", text: "Upcoming poll with SDG related content") do
@@ -559,6 +562,9 @@ describe "Admin polls", :admin do
 
       remove_sdg_goal_or_target_tag(1)
       click_button "Update poll"
+
+      expect(page).to have_content "Poll updated successfully"
+
       visit admin_polls_path
 
       within("tr", text: "Upcoming poll with SDG related content") do

spec/system/admin/site_customization/images_spec.rb

@@ -42,6 +42,8 @@ describe "Admin custom images", :admin do
       click_button "Update"
     end
 
+    expect(page).to have_content "Image updated successfully"
+
     visit proposals_path
 
     within("#map") do
@@ -82,6 +84,8 @@ describe "Admin custom images", :admin do
       click_button "Update"
     end
 
+    expect(page).to have_content "Image updated successfully"
+
     visit admin_newsletter_path(newsletter)
 
     within(".newsletter-body-content") do

spec/system/admin/tags_spec.rb

@@ -24,6 +24,8 @@ describe "Admin tags", :admin do
       click_button "Create topic"
     end
 
+    within("table") { expect(page).to have_content "important issues" }
+
     visit admin_tags_path
 
     expect(page).to have_content "important issues"

spec/system/admin/translatable_spec.rb

@@ -26,6 +26,8 @@ describe "Admin edit translatable records", :admin do
         fill_in "Heading name", with: "Nom en Français"
         click_button "Save heading"
 
+        expect(page).to have_content "Heading updated successfully"
+
         visit path
 
         expect(page).to have_field "Heading name", with: "Heading name in English"
@@ -53,6 +55,8 @@ describe "Admin edit translatable records", :admin do
         fill_in_ckeditor "Content", with: "Contenu en Français"
         click_button "Update Custom page"
 
+        expect(page).to have_content "Page updated successfully"
+
         visit path
 
         expect(page).to have_ckeditor "Content", with: "Content in English"
@@ -81,6 +85,8 @@ describe "Admin edit translatable records", :admin do
         click_link class: "fullscreen-toggle"
         click_button "Save changes"
 
+        expect(page).to have_content "Draft updated successfully"
+
         visit path
         click_link class: "fullscreen-toggle"
 
@@ -111,6 +117,8 @@ describe "Admin edit translatable records", :admin do
         fill_in "Question", with: "Português"
         click_button "Save changes"
 
+        expect(page).to have_content "Question updated successfully"
+
         visit path
         select "Português brasileiro", from: "Language:"
 
@@ -201,6 +209,8 @@ describe "Admin edit translatable records", :admin do
 
         click_button "Save card"
 
+        expect(page).to have_content "Card updated successfully"
+
         visit path
 
         expect(page).to have_field "Title", with: "Title in English"
@@ -230,6 +240,8 @@ describe "Admin edit translatable records", :admin do
 
         click_button "Save"
 
+        expect(page).to have_content "Changes saved"
+
         visit path
 
         expect(page).to have_field "Answer", with: "Answer in English"
@@ -253,6 +265,8 @@ describe "Admin edit translatable records", :admin do
         fill_in "Summary", with: ""
         click_button "Update poll"
 
+        expect(page).to have_content "Poll updated successfully"
+
         visit path
 
         expect(page).to have_field "Summary", with: ""
@@ -345,6 +359,8 @@ describe "Admin edit translatable records", :admin do
 
       click_button "Save group"
 
+      expect(page).to have_content "Group updated successfully"
+
       visit path
 
       expect(page).not_to have_select "Current language", with_options: ["Español"]
@@ -443,6 +459,8 @@ describe "Admin edit translatable records", :admin do
 
         click_button "Save changes"
 
+        expect(page).to have_content "Changes saved"
+
         visit budgets_path
         click_link "Name en Français"
 
@@ -464,6 +482,8 @@ describe "Admin edit translatable records", :admin do
         click_link "Remove language"
         click_button "Save"
 
+        expect(page).to have_content "Polls description updated successfully"
+
         visit polls_path
 
         expect(page).to have_content "Sondage en Français"

spec/system/dashboard/polls_spec.rb

@@ -161,6 +161,9 @@ describe "Polls" do
     end
 
     click_button "Update poll"
+
+    expect(page).to have_content "Poll updated successfully"
+
     visit edit_proposal_dashboard_poll_path(proposal, poll)
 
     expect(page).to have_css ".nested-fields", count: 1

spec/system/site_customization/information_texts_spec.rb

@@ -9,10 +9,14 @@ describe "Custom information texts", :admin do
     fill_in "contents[content_#{debate_key}]values[value_en]", with: "Custom help with debates"
     click_button "Save"
 
+    expect(page).to have_content "Translation updated successfully"
+
     visit admin_site_customization_information_texts_path(tab: "proposals")
     fill_in "contents[content_#{proposal_key}]values[value_en]", with: "Custom help with proposals"
     click_button "Save"
 
+    expect(page).to have_content "Translation updated successfully"
+
     visit debates_path
 
     within("#section_help") do
@@ -42,6 +46,8 @@ describe "Custom information texts", :admin do
     fill_in "contents[content_#{intro_key}]values[value_en]", with: "Custom hi to %{author}"
     click_button "Save"
 
+    expect(page).to have_content "Translation updated successfully"
+
     visit admin_system_email_view_path("budget_investment_created")
 
     expect(page).to have_content "Custom hi to Rachel"

spec/system/translatable_spec.rb

@@ -202,6 +202,8 @@ describe "Public area translatable records" do
 
           click_button "Save changes"
 
+          expect(page).to have_content "Debate updated successfully"
+
           visit path
 
           expect(page).to have_field "Debate title", with: "Title in English"

spec/system/users_auth_spec.rb

@@ -232,6 +232,8 @@ describe "Users" do
         expect(page).to have_current_path(finish_signup_path)
         click_link "Cancel login"
 
+        expect(page).to have_content "You have been signed out successfully"
+
         visit "/"
         expect_not_to_be_signed_in
       end

spec/system/users_spec.rb

@@ -174,6 +174,8 @@ describe "Users" do
       uncheck "account_public_activity"
       click_button "Save changes"
 
+      expect(page).to have_content "Changes saved"
+
       visit user_path(user)
       expect(page).not_to have_content("activity list private")
     end

spec/system/valuation/budget_investments_spec.rb

@@ -308,6 +308,8 @@ describe "Valuation budget investments" do
       choose "budget_investment_feasibility_feasible"
       click_button "Save changes"
 
+      expect(page).to have_content "Dossier updated"
+
       visit edit_valuation_budget_budget_investment_path(budget, investment)
 
       expect(find("#budget_investment_feasibility_undecided")).not_to be_checked
@@ -316,6 +318,8 @@ describe "Valuation budget investments" do
       choose "budget_investment_feasibility_undecided"
       click_button "Save changes"
 
+      expect(page).to have_content "Dossier updated"
+
       visit edit_valuation_budget_budget_investment_path(budget, investment)
       expect(find("#budget_investment_feasibility_undecided")).to be_checked
     end
@@ -357,6 +361,8 @@ describe "Valuation budget investments" do
 
       click_button "Save changes"
 
+      expect(page).to have_content "Dossier updated"
+
       visit edit_valuation_budget_budget_investment_path(budget, investment)
 
       expect(find("#budget_investment_feasibility_unfeasible")).to be_checked