chore(repo): add missed trailing commas

packages/stream_chat_localizations/example/lib/add_new_lang.dart

@@ -374,8 +374,10 @@ class NnStreamChatLocalizations extends GlobalStreamChatLocalizations {
   String get youText => 'You';
 
   @override
-  String galleryPaginationText(
-          {required int currentPage, required int totalPages}) =>
+  String galleryPaginationText({
+    required int currentPage,
+    required int totalPages,
+  }) =>
       '$currentPage of $totalPages';
 
   @override