fix: ultra-fake orders

lib/mobile_example.dart

@@ -6,6 +6,7 @@ import 'package:gymlink_module_web/main_mobile.dart';
 import 'package:gymlink_module_web/providers/main.dart';
 import 'package:http/http.dart' as http;
 import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 void main() {
   runApp(const MyExampleApp());
@@ -250,8 +251,16 @@ class ExampleSecondPage extends StatelessWidget {
         title: const Text('GymLink Example App'),
       ),
       drawer: getDrawer(context),
-      body: const Center(
-        child: Text('Example page'),
+      body: Center(
+        child: TextButton(
+            onPressed: () async {
+              final prefs = await SharedPreferences.getInstance();
+              prefs.remove('token');
+              prefs.remove('history');
+              prefs.remove('cart');
+              prefs.remove('detail_history');
+            },
+            child: const Text('Clear')),
       ),
     );
   }