feat: Refactor admin UI pages to support embedded mode and improve navigation

- Updated PlayerLogs, Players, Reports, Rooms, Settings, SignupCodes, and other pages to accept an optional `embedded` prop for better integration in various contexts.
- Introduced a new Activity page consolidating audit logs and player request logs with tab navigation.
- Added Content page for community board and loading tips with tab navigation.
- Created Moderation page to unify player directory, bans, and reports under a single interface.
- Implemented SettingsHome page to manage server settings and signup codes with tab navigation.
- Enhanced the Join page to include password creation for new accounts.
- Added global friends feature in Settings to allow all accounts to be friends without database entries.
- Introduced RelationshipQueries service to manage effective friend resolution based on global friends toggle.
- Added WireDates for consistent date handling in serialized data.
- Created reusable Tabs component for consistent tab navigation across various pages.

DorkNet.Server/Controllers/API/Messages/V2/MessagesController.cs

@@ -23,6 +23,7 @@ public class MessagesController(
     NotificationService notifications,
     PrivateInstanceService privateInstances,
     OnlinePresenceService onlinePresence,
+    ServerSettingsService serverSettings,
     ILogger<MessagesController> logger) : ControllerBase
 {
     private long Me => this.RequireCurrentPlayerId();
@@ -471,11 +472,8 @@ public class MessagesController(
     [HttpGet("/api/messages/v1/favoriteFriendOnlineStatus")]
     public async Task<ActionResult> FavoriteFriendOnlineStatus()
     {
-        var friendIds = await db.Relationships
-            .Where(r => r.Status == RelationshipStatus.Friend &&
-                        (r.RequesterId == Me || r.TargetId == Me))
-            .Select(r => r.RequesterId == Me ? r.TargetId : r.RequesterId)
-            .ToListAsync();
+        // Honors the global-friends toggle (everyone is a friend when on).
+        var friendIds = await RelationshipQueries.EffectiveFriendIdsAsync(db, serverSettings, Me);
         var online = onlinePresence.OnlinePlayerIds().ToHashSet();
         return Ok(friendIds.Select(id => new
         {