👽 Update message db to support server changes

lib/models/chat.dart

@@ -18,6 +18,7 @@ sealed class SnChatRoom with _$SnChatRoom {
     required SnCloudFile? picture,
     required SnCloudFile? background,
     required String? realmId,
+    required String? accountId,
     required SnRealm? realm,
     required DateTime createdAt,
     required DateTime updatedAt,
@@ -85,12 +86,10 @@ sealed class SnChatMember with _$SnChatMember {
     required String accountId,
     required SnAccount account,
     required String? nick,
-    required int role,
     required int notify,
     required DateTime? joinedAt,
     required DateTime? breakUntil,
     required DateTime? timeoutUntil,
-    required bool isBot,
     required SnAccountStatus? status,
     // Frontend data
     DateTime? lastTyped,