Fix app config (#3614)

Author: svartkanin

archinstall/lib/global_menu.py

@@ -131,7 +131,7 @@ def _get_menu_options(self) -> list[MenuItem]:
 				action=self._select_applications,
 				value=[],
 				preview_action=self._prev_applications,
-				key='application_config',
+				key='app_config',
 			),
 			MenuItem(
 				text=tr('Kernels'),