Merge branch 'custom-role-ui-enhancements' into 'master'

Custom role UI enhancements

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/141887



Merged-by: Tristan Read <tread@gitlab.com>
Approved-by: Arpit Gogia <12347103-arpitgogia@users.noreply.gitlab.com>
Approved-by: Daniel Tian <dtian@gitlab.com>
Approved-by: Tristan Read <tread@gitlab.com>
Reviewed-by: Doug Stull <dstull@gitlab.com>
Reviewed-by: Alex Buijs <abuijs@gitlab.com>
Co-authored-by: Alex Buijs <abuijs@gitlab.com>