Data transfer and state control

lib/presentation/chat/chat_screen/models/chat_model.dart

@@ -5,12 +5,13 @@ import 'package:equatable/equatable.dart';
 /// This class defines the variables used in the [chat_screen],
 /// and is typically used to hold data that is passed between different parts of the application.
 class ChatModel extends Equatable {
-  ChatModel();
+  String? chatID;
+  ChatModel({String? chatID});
 
-  ChatModel copyWith() {
-    return ChatModel();
+  ChatModel copyWith(String chatID) {
+    return ChatModel(chatID: chatID);
   }
 
   @override
-  List<Object?> get props => [];
+  List<Object?> get props => [chatID];
 }