Paginate registry image list
A user in IRC mentioned that with many images, the Registry page has trouble loading and is barely usable. It's not paginated at all and offers no sorting. There is an existing sorting issue at https://gitlab.com/gitlab-org/gitlab-ce/issues/20216.
It would go along way toward improving the experience if we paginate the list. It will probably help with page load times if we're not rendering each image, too.
Since sorting is tricky, for now we just address pagination with the actual order.
Edited by username-removed-1243277