fix(ui): use correct title for container images (#6254)
Fixed the wrong box title here:
https://codeberg.org/attachments/5e3a8443-f1f3-4fdd-922e-0426ba370bc7
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/6254
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>