Redesign admin accounts index (#9340)

* Improve overview of accounts in admin UI

- Display suspended status, role, last activity and IP prominently
- Default to showing local accounts
- Default to not showing suspended accounts

* Remove unused strings

* Fix tests

* Allow filtering accounts by IP mask

config/locales/ca.yml

@@ -123,10 +123,6 @@ ca:
       most_recent_ip: IP més recent
       no_limits_imposed: Sense límits imposats
       not_subscribed: No subscrit
-      order:
-        alphabetic: Alfabètic
-        most_recent: Més recent
-        title: Ordre
       outbox_url: URL de la bústia de sortida
       perform_full_suspension: Suspèn
       profile_url: URL del perfil