Replace bootstrap alerts in app/.../_mr_title.html.haml

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41399

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

@@ -4,8 +4,10 @@
 - state_human_name, state_icon_name = state_name_with_icon(@merge_request)
 
 - if @merge_request.closed_without_fork?
-  .alert.alert-danger
-    The source project of this merge request has been removed.
+  .gl-alert.gl-alert-danger.gl-mb-5
+    = sprite_icon('error', size: 16, css_class: 'gl-icon gl-alert-icon gl-alert-icon-no-title')
+    .gl-alert-body
+      The source project of this merge request has been removed.
 
 .detail-page-header.border-bottom-0.pt-0.pb-0
   .detail-page-header-body

changelogs/unreleased/233659-replace-bootstrap-alerts-in-app-views-projects-merge_requests-_mr_.yml

+---
+title: Replace bootstrap alerts in app/views/projects/merge_requests/_mr_title.html.haml
+merge_request: 41399
+author: Gilang Gumilar
+type: changed