Add missing expectations in remotely translatable tests

After changing the language, we were checking that certain content isn't
there.

However, the content wasn't there before changing the language either,
so the test will pass even if the request to change the language hasn't
finished.

Although this is probably OK because we aren't changing the language
using an AJAX request, and so Capybara will correctly wait until the
request is finished before finishing the test, confirming that the page
has changed after a request is something we try to do in every test.

spec/shared/system/remotely_translatable.rb

@@ -38,6 +38,7 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
 
       select "Español", from: "Language:"
 
+      expect(page).to have_select "Idioma:"
       expect(page).not_to have_button("Traducir página")
     end
 
@@ -47,6 +48,7 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
 
       select "Español", from: "Language:"
 
+      expect(page).to have_select "Idioma:"
       expect(page).not_to have_button("Traducir página")
     end
 
@@ -57,9 +59,9 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
 
         select "Español", from: "Language:"
 
-        expect(page).not_to have_button("Traducir página")
         expect(page).to have_content "En un breve periodo de tiempo refrescando la página " \
                                      "podrá ver todo el contenido en su idioma"
+        expect(page).not_to have_button("Traducir página")
       end
     end
 
@@ -73,6 +75,7 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
 
         select "Español", from: "Language:"
 
+        expect(page).to have_select "Idioma:"
         expect(page).not_to have_button("Traducir página")
       end
     end
@@ -97,6 +100,7 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
 
         select "Español", from: "Language:"
 
+        expect(page).to have_select "Idioma:"
         expect(page).not_to have_button("Traducir página")
       end
     end
@@ -167,10 +171,10 @@ shared_examples "remotely_translatable" do |factory_name, path_name, path_argume
         visit path
         select "Español", from: "Idioma:"
 
-        expect(page).not_to have_button "Traducir página"
-        expect(page).not_to have_content "Se han solicitado correctamente las traducciones."
         expect(page).to have_content "En un breve periodo de tiempo refrescando la página " \
                                      "podrá ver todo el contenido en su idioma"
+        expect(page).not_to have_button "Traducir página"
+        expect(page).not_to have_content "Se han solicitado correctamente las traducciones."
       end
     end