refactored answer references and added animation

lib/model/chatList/chatProps.dart

@@ -6,12 +6,11 @@ import '../dataHolder.dart';
 class ChatProps extends DataHolder {
   String _queryToken = '';
   DateTime _lastTokenSet = DateTime.now();
+  int? referenceMessageId;
 
   GetChatResponse? _getChatResponse;
   GetChatResponse get getChatResponse => _getChatResponse!;
 
-  int? referenceMessageId;
-
   @override
   List<ApiResponse?> properties() => [_getChatResponse];
 
@@ -34,7 +33,7 @@ class ChatProps extends DataHolder {
 
   void setReferenceMessageId(int? messageId) {
     referenceMessageId = messageId;
-    run();
+    notifyListeners();
   }
 
   void setQueryToken(String token) {