fix: keepAlive not working for popup appendToMain (#5666)

* 修复弹窗和抽屉 `appendToMain` 时且启用`keepAlive` 时未能正确缓存的问题

playground/src/views/examples/drawer/index.vue

@@ -13,6 +13,7 @@ import FormDrawerDemo from './form-drawer-demo.vue';
 import inContentDemo from './in-content-demo.vue';
 import SharedDataDemo from './shared-data-demo.vue';
 
+defineOptions({ name: 'DrawerExample' });
 const [BaseDrawer, baseDrawerApi] = useVbenDrawer({
   // 连接抽离的组件
   connectedComponent: BaseDemo,