Add 'Test mode' switch to the profile dropdown

app/views/shared/_test_alert.html.erb

@@ -2,7 +2,7 @@
   <div class="hidden md:flex alert py-1 text-sm font-medium gap-x-2  whitespace-nowrap">
     <a href="<%= testing_api_settings_path %>" data-turbo-frame="modal" class="link font-semibold flex">
       <%= svg_icon('code_circle', class: 'w-5 h-5 mr-1') %>
-      <span><%= t('testing_environment') %></span>
+      <span><%= t('test_mode') %></span>
     </a>
     <span>
       |