Some further logic fixes

lib/presentation/name_screen/models/name_model.dart

@@ -1,14 +1,19 @@
 // ignore_for_file: must_be_immutable
 
 import 'package:equatable/equatable.dart';
+import 'package:eatvio_app/data/models/userRegistrationModel/user_registration_model.dart';
 
 /// This class defines the variables used in the [name_screen],
 /// and is typically used to hold data that is passed between different parts of the application.
 class NameModel extends Equatable {
-  NameModel() {}
+  NameModel({required this.userRegistrationSheet});
+  UserRegistrationSheet userRegistrationSheet;
 
-  NameModel copyWith() {
-    return NameModel();
+  NameModel copyWith({UserRegistrationSheet? userRegistrationSheet}) {
+    return NameModel(
+      userRegistrationSheet:
+          userRegistrationSheet ?? this.userRegistrationSheet,
+    );
   }
 
   @override