codigo actual del servidor, con avances de joan

source_code/lib/dummy_data/ChatMessage.dart

@@ -0,0 +1,8 @@
+import 'package:flutter/material.dart';
+
+class ChatMessage{
+  String messageContent;
+  String messageType;
+  bool owner;
+  ChatMessage({required this.messageContent, required this.messageType,required this.owner});
+}