Feature: Add Services Status page and update navigation

- Introduced a new Services Status page to monitor the status of Backend, Chat, and Daemon services.
- Updated navigation structure to include the new Services Status link for main admin users.
- Added German and English localization for the Services Status page, including titles, descriptions, and status messages.

frontend/src/i18n/locales/de/navigation.json

@@ -64,7 +64,8 @@
                 "match3": "Match3 Level",
                 "taxiTools": "Taxi-Tools"
             },
-            "chatrooms": "Chaträume"
+            "chatrooms": "Chaträume",
+            "servicesStatus": "Service-Status"
         },
         "m-friends": {
             "manageFriends": "Freunde verwalten",