Merge pull request #2373 from consul/single_heading_group_names

Improve heading names at select boxes

spec/features/admin/budget_investments_spec.rb

@@ -101,7 +101,7 @@ feature 'Admin budget investments' do
       expect(page).to have_link("Change name")
       expect(page).to have_link("Plant trees")
 
-      select "Parks: Central Park", from: "heading_id"
+      select "Central Park", from: "heading_id"
 
       expect(page).not_to have_link("Realocate visitors")
       expect(page).not_to have_link("Change name")