fix(app): remove unused parameter from _AppInternal constructor

lib/app/app.dart

@@ -108,10 +108,9 @@ class _AppInternal extends StatefulWidget {
   /// {@macro app_internal}
   const _AppInternal({
     required this.diContainer,
-    @visibleForTesting this.mockRouter,
+    @visibleForTesting this.mockRouter, // ignore: unused_element_parameter
   });
 
-
   /// Контейнер зависимостей
   final DiContainer diContainer;