fix(gui-ubuntupro): Sort imports in subscription_status_model.dart (#403

)

Linter rules must've changed recently

gui/packages/ubuntupro/lib/pages/subscription_status/subscription_status_model.dart

@@ -4,9 +4,9 @@ import 'package:flutter/material.dart';
 import 'package:p4w_ms_store/p4w_ms_store.dart';
 import 'package:url_launcher/url_launcher.dart';
 
+import '../../core/environment.dart';
 import '/core/agent_api_client.dart';
 import '/core/pro_token.dart';
-import '../../core/environment.dart';
 
 /// A base class for the view-models that may represent different types of subscriptions and the optional actions they allow.
 sealed class SubscriptionStatusModel {