Add notice when supporting an investment

It was hard to notice what was going on when supporting one investment
which was at the bottom of the investment index page.

I wonder whether we should add the title of the investment to this text;
I'm not doing so because we don't do that anywhere else.

app/controllers/budgets/investments_controller.rb

@@ -92,8 +92,13 @@ module Budgets
 
     def vote
       @investment.register_selection(current_user)
+
       respond_to do |format|
-        format.html { redirect_to budget_investments_path(heading_id: @investment.heading.id) }
+        format.html do
+          redirect_to budget_investments_path(heading_id: @investment.heading.id),
+            notice: t("flash.actions.create.support")
+        end
+
         format.js
       end
     end

app/controllers/management/budgets/investments_controller.rb

@@ -40,8 +40,13 @@ class Management::Budgets::InvestmentsController < Management::BaseController
 
   def vote
     @investment.register_selection(managed_user)
+
     respond_to do |format|
-      format.html { redirect_to management_budget_investments_path(heading_id: @investment.heading.id) }
+      format.html do
+        redirect_to management_budget_investments_path(heading_id: @investment.heading.id),
+          notice: t("flash.actions.create.support")
+      end
+
       format.js
     end
   end

config/locales/en/responders.yml

@@ -14,6 +14,7 @@ en:
         proposal_notification: "Your message has been sent correctly."
         budget_investment: "Budget Investment created successfully."
         signature_sheet: "Signature sheet created successfully"
+        support: "Investment supported successfully"
         topic: "Topic created successfully."
         valuator_group: "Valuator group created successfully"
       save_changes:

config/locales/es/responders.yml

@@ -14,6 +14,7 @@ es:
         proposal_notification: "Tu mensaje ha sido enviado correctamente."
         budget_investment: "Proyecto de gasto creado correctamente."
         signature_sheet: "Hoja de firmas creada correctamente"
+        support: "Proyecto de gasto apoyado correctamente"
         topic: "Tema creado correctamente."
         valuator_group: "Grupo de evaluadores creado correctamente"
       save_changes:

spec/system/budgets/votes_spec.rb

@@ -127,6 +127,8 @@ describe "Votes" do
                                        "Share it!"
         end
 
+        expect(page).to have_content "Investment supported successfully"
+
         visit budget_investments_path(budget, heading_id: san_francisco.id)
 
         within("#budget_investment_#{san_francisco_investment.id}") do

spec/system/management/budget_investments_spec.rb

@@ -329,6 +329,7 @@ describe "Budget Investments" do
 
       expect(page).to have_content "1 support"
       expect(page).to have_content "You have already supported this investment project. Share it!"
+      expect(page).to have_content "Investment supported successfully"
       expect(page).to have_content "CONSUL\nMANAGEMENT"
     end