add notice when matching is completed

spec/features/user_managing_appearance_releases_spec.rb

@@ -324,6 +324,18 @@ feature 'User managing appearance releases' do
       expect(page).to have_content no_appearance_releases
     end
 
+    scenario 'Message is shown when matching job is completed', js: true do
+      visit project_appearance_releases_path(project)
+
+      attach_file import_appearance_release_field, Rails.root.join(file_fixture('person_photo.png')), visible: false
+      allow(MatchAppearanceReleasesJob).to receive(:perform_later).with(project, anything)
+      click_button submit_create_button
+      expect(page).to have_content matching_started
+      expect(page).to have_content no_appearance_releases
+      expect(page).not_to have_content matching_started
+      expect(page).to have_content matching_completed
+    end
+
     scenario 'user leaving the page is presented with the warning if file upload is in progress', js: true do
       skip "Test is inconsistently failing in CI"
 
@@ -847,6 +859,10 @@ feature 'User managing appearance releases' do
     t 'appearance_releases.create.matching_started'
   end
 
+  def matching_completed
+    t 'appearance_releases.create.matching_completed'
+  end
+
   def filter_type_all
     t 'appearance_releases.type_filter_actions.all_releases'
   end