Add stat cards for filtering users

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/165403



Merged-by: Tomas Bulva <tbulva@gitlab.com>
Approved-by: Tim Noah <tnoah@gitlab.com>
Approved-by: Aboobacker MK <akarakath@gitlab.com>
Approved-by: Thong Kuah <tkuah@gitlab.com>
Approved-by: Sharmad Nachnolkar <snachnolkar@gitlab.com>
Approved-by: Tomas Bulva <tbulva@gitlab.com>
Reviewed-by: Sheldon Led <sheldonled@gitlab.com>
Reviewed-by: Eduardo Sanz García <esanz-garcia@gitlab.com>
Co-authored-by: Austin Regnery <aregnery@gitlab.com>