opt update page transition

Signed-off-by: dom <githubaccount56556@proton.me>

lib/pages/setting/models/style_settings.dart

@@ -663,8 +663,8 @@ Future<void> _showTransitionDialog(
     ),
   );
   if (res != null) {
+    Get.rootController.defaultTransition = res;
     await GStorage.setting.put(SettingBoxKey.pageTransition, res.index);
-    SmartDialog.showToast('重启生效');
     setState();
   }
 }