Merge branch '337133-jh-locale' into 'master'

Implement JH only locale and use promo_host

See merge request gitlab-org/gitlab!68573

app/views/devise/shared/_footer.html.haml

@@ -4,5 +4,5 @@
     - unless public_visibility_restricted?
       = link_to _("Explore"), explore_root_path
       = link_to _("Help"), help_path
-    = link_to _("About GitLab"), "https://about.gitlab.com/"
+    = link_to _("About GitLab"), "https://#{ApplicationHelper.promo_host}"
 = footer_message

config/initializers_before_autoloader/001_fast_gettext.rb

 # frozen_string_literal: true
 
-FastGettext.add_text_domain 'gitlab',
+translation_repositories = [
+  FastGettext::TranslationRepository.build(
+    'gitlab',
     path: File.join(Rails.root, 'locale'),
     type: :po,
     ignore_fuzzy: true
+  )
+]
+
+Gitlab.jh do
+  translation_repositories.unshift(
+    FastGettext::TranslationRepository.build(
+      'gitlab',
+      path: File.join(Rails.root, 'jh', 'locale'),
+      type: :po,
+      ignore_fuzzy: true
+    )
+  )
+end
+
+FastGettext.add_text_domain(
+  'gitlab',
+  type: :chain,
+  chain: translation_repositories,
+  ignore_fuzzy: true
+)
+
 FastGettext.default_text_domain = 'gitlab'
 FastGettext.default_locale = :en

spec/helpers/nav/new_dropdown_helper_spec.rb

@@ -99,7 +99,7 @@ RSpec.describe Nav::NewDropdownHelper do
         it 'has project menu item' do
           expect(subject[:menu_sections]).to eq(
             expected_menu_section(
-              title: 'GitLab',
+              title: _('GitLab'),
               menu_item: ::Gitlab::Nav::TopNavMenuItem.build(
                 id: 'general_new_project',
                 title: 'New project/repository',
@@ -117,7 +117,7 @@ RSpec.describe Nav::NewDropdownHelper do
         it 'has group menu item' do
           expect(subject[:menu_sections]).to eq(
             expected_menu_section(
-              title: 'GitLab',
+              title: _('GitLab'),
               menu_item: ::Gitlab::Nav::TopNavMenuItem.build(
                 id: 'general_new_group',
                 title: 'New group',
@@ -135,7 +135,7 @@ RSpec.describe Nav::NewDropdownHelper do
         it 'has new snippet menu item' do
           expect(subject[:menu_sections]).to eq(
             expected_menu_section(
-              title: 'GitLab',
+              title: _('GitLab'),
               menu_item: ::Gitlab::Nav::TopNavMenuItem.build(
                 id: 'general_new_snippet',
                 title: 'New snippet',