Merge branch 'registry-fix-multi-delete-modal' into 'master'

Set unique modal IDs

See merge request gitlab-org/gitlab-ce!30532

(cherry picked from commit b698e4ce)

a076d1d8 Set unique modal IDs

changelogs/unreleased/registry-fix-multi-delete-modal.yml

+---
+title: Prevent multiple confirmation modals from opening when deleting a repository
+merge_request: 30532
+author:
+type: fixed