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/sv.yml

@@ -103,10 +103,6 @@ sv:
       most_recent_activity: Senaste aktivitet
       most_recent_ip: Senaste IP
       not_subscribed: Inte prenumererat
-      order:
-        alphabetic: Alfabetiskt
-        most_recent: Senaste
-        title: Ordning
       outbox_url: Utkorg URL
       perform_full_suspension: Utför full avstängning
       profile_url: Profil URL