TF-802 Disable vacation responder in setting

lib/features/manage_account/presentation/extensions/vacation_response_extension.dart

@@ -1,6 +1,7 @@
 
 import 'package:core/utils/app_logger.dart';
 import 'package:flutter/material.dart';
+import 'package:jmap_dart_client/jmap/core/utc_date.dart';
 import 'package:jmap_dart_client/jmap/mail/vacation/vacation_response.dart';
 import 'package:tmail_ui_user/features/manage_account/presentation/model/vacation/vacation_presentation.dart';
 import 'package:tmail_ui_user/features/manage_account/presentation/model/vacation/vacation_responder_status.dart';
@@ -40,4 +41,22 @@ extension VacationResponseExtension on VacationResponse {
     }
     return false;
   }
+
+  VacationResponse copyWith({
+    bool? isEnabled,
+    UTCDate? fromDate,
+    UTCDate? toDate,
+    String? subject,
+    String? textBody,
+    String? htmlBody
+  }) {
+    return VacationResponse(
+      isEnabled: isEnabled ?? this.isEnabled,
+      fromDate: fromDate ?? this.fromDate,
+      toDate: toDate ?? this.toDate,
+      subject: subject ?? this.subject,
+      textBody: textBody ?? this.textBody,
+      htmlBody: htmlBody ?? this.htmlBody
+    );
+  }
 }