Add link to releases on Tags page

The commit adds a link to the associated release for each tag on the
Tags page (if the tag is associated with a release).

app/assets/stylesheets/framework/lists.scss

@@ -123,7 +123,7 @@ ul.content-list {
       font-weight: $gl-font-weight-bold;
     }
 
-    a {
+    a:not(.default-link-color) {
       color: $gl-text-color;
     }
 

app/views/projects/tags/_tag.html.haml

@@ -19,9 +19,15 @@
     - else
       %p
         = s_("TagsPage|Can't find HEAD commit for this tag")
-    - if release && release.description.present?
-      .description.md.prepend-top-default
-        = markdown_field(release, :description)
+
+    - if release
+      .text-secondary
+        = icon('rocket')
+        = _("Release")
+        = link_to release.name, project_releases_path(@project, anchor: release.tag), class: 'default-link-color'
+      - if release.description.present?
+        .description.md.prepend-top-default
+          = markdown_field(release, :description)
 
   .row-fixed-content.controls.flex-row
     = render 'projects/buttons/download', project: @project, ref: tag.name, pipeline: @tags_pipelines[tag.name]

ee/changelogs/unreleased/nfriend-add-releases-to-tags.yml

+---
+title: Add links to associated releases on Tags page
+merge_request: 16479
+author:
+type: added

locale/gitlab.pot

@@ -13117,6 +13117,9 @@ msgstr ""
 msgid "Related merge requests"
 msgstr ""
 
+msgid "Release"
+msgstr ""
+
 msgid "Releases"
 msgstr ""
 

spec/views/projects/tags/index.html.haml_spec.rb

@@ -23,6 +23,11 @@ describe 'projects/tags/index' do
     expect(rendered).to have_button('Last updated')
   end
 
+  it 'renders links to the Releases page for tags associated with a release' do
+    render
+    expect(rendered).to have_link(release.name, href: project_releases_path(project, anchor: release.tag))
+  end
+
   context 'when the most recent build for a tag has artifacts' do
     let!(:build) { create(:ci_build, :success, :artifacts, pipeline: pipeline) }