add send-links capability with translation

packages/stream_chat_localizations/example/lib/add_new_lang.dart

@@ -396,6 +396,13 @@ class NnStreamChatLocalizations extends GlobalStreamChatLocalizations {
 
   @override
   String get slowModeOnLabel => 'Slow mode ON';
+
+  @override
+  String get linkDisabledDetails =>
+      'Sending links is not allowed in this conversation.';
+
+  @override
+  String get linkDisabledError => 'Links are disabled';
 }
 
 void main() async {