Allow for filtering users with 2fa enabled as admin. So that it is easy to audit users' settings compliance with iso27001, etc. Resolves #11800 Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12091 Reviewed-by: Gusted <gusted@noreply.codeberg.org> Co-authored-by: Dominik Zyla <zylad@noreply.codeberg.org> Co-committed-by: Dominik Zyla <zylad@noreply.codeberg.org>