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/ru.yml

@@ -128,10 +128,6 @@ ru:
       most_recent_activity: Последняя активность
       most_recent_ip: Последний IP
       not_subscribed: Не подписаны
-      order:
-        alphabetic: По алфавиту
-        most_recent: По дате
-        title: Порядок
       outbox_url: URL исходящих
       perform_full_suspension: Полная блокировка
       profile_url: URL профиля