Updates texts for tests

spec/features/management/proposals_spec.rb

@@ -139,7 +139,7 @@ feature 'Proposals' do
 
       find('.in-favor a').click
       expect(page).to have_content "1 support"
-      expect(page).to have_content "You already supported this proposal"
+      expect(page).to have_content "You have already supported this proposal. Share it!"
       expect(current_path).to eq(management_proposal_path(proposal))
     end
 

spec/features/verification/letter_spec.rb

@@ -81,7 +81,7 @@ feature 'Verify Letter' do
       fill_in "verification_letter_verification_code", with: "12345"
       click_button "Verify my account"
 
-      expect(page).to have_content "Your account has been verified"
+      expect(page).to have_content "Account verified"
       expect(current_path).to eq(account_path)
     end
 

spec/features/votes_spec.rb

@@ -267,7 +267,7 @@ feature 'Votes' do
         within("#proposal_#{@proposal.id}") do
           find('.in-favor a').click
 
-          expect(page).to have_content "You already supported this proposal, share it!"
+          expect(page).to have_content "You have already supported this proposal. Share it!"
         end
         expect(current_path).to eq(proposals_path)
       end