✨ Joindable chat, detailed realms, discovery mixed into explore

🐛 bunch of bugs fixes

lib/models/chat.dart

@@ -13,8 +13,8 @@ sealed class SnChatRoom with _$SnChatRoom {
     required String? name,
     required String? description,
     required int type,
-    required bool isPublic,
-    required bool isCommunity,
+    @Default(false) bool isPublic,
+    @Default(false) bool isCommunity,
     required SnCloudFile? picture,
     required SnCloudFile? background,
     required String? realmId,