Merge branch '267751-fix-stretched-flash-project-commit-show-page' into 'master'

Contain flash message in projects commit show page

See merge request gitlab-org/gitlab!48439

app/assets/stylesheets/pages/issuable.scss

@@ -10,6 +10,7 @@
 }
 
 .limit-container-width {
+  .flash-container,
   .detail-page-header,
   .page-content-header,
   .commit-box,

changelogs/unreleased/267751-fix-stretched-flash-project-commit-show-page.yml

+---
+title: Fix stretched flash in project commit show page
+merge_request: 48439
+author:
+type: fixed