Merge branch 'Update-markup-in-merge_requests/_mr_title.html-haml-file' into 'master'

Update markup in merge_requests/_mr_title.html.haml

See merge request gitlab-org/gitlab!63187

app/views/projects/merge_requests/_mr_title.html.haml

@@ -7,7 +7,9 @@
 = cache_if(Feature.enabled?(:cached_mr_title, @project, default_enabled: :yaml), cache_key, expires_in: 1.day) do
   - if @merge_request.closed_or_merged_without_fork?
     .gl-alert.gl-alert-danger.gl-mb-5
+      .gl-alert-container
         = sprite_icon('error', size: 16, css_class: 'gl-icon gl-alert-icon gl-alert-icon-no-title')
+        .gl-alert-content
           .gl-alert-body
             The source project of this merge request has been removed.