Prevent accidental deletion of container image repositories

Problem to solve

When deleting a container registry image, users can inadvertently delete the wrong thing. This can lead to a situation where images are deleted by people working in good faith which can then be time consuming/difficult to recover. In some cases, it's not abundantly clear which project a user is looking at leading to mistaken deletions.

From the images below, only the (small) breadcrumb shows which project the user is acting on.

Proposal

Delete image repository (boring solution)

• Move the Delete image repository button into a more actions button dropdown at the top of the page.
  • component:button ellipsis: https://design.gitlab.com/components/button/#ellipsis
  • Clicking the more action button displays the Delete image repository option.
    • Clicking Delete image repository triggers the existing flow for deleting the repository.
  • Clicking anywhere outside the dropdown closes it.

Considerations

It can be time-consuming for users as well as support teams of gitlab.com as well as self-managed customers. There have been a couple of recent incidents of this occurring involving large customers as well as experienced users of GitLab.