types: using unknown instead of any (#8152)

* types: using unknown instead of any

* chore: UnknownProp

src/popup/index.tsx

@@ -13,7 +13,7 @@ import {
   onDeactivated,
   onBeforeUnmount,
 } from 'vue';
-import { createNamespace, isDef } from '../utils';
+import { createNamespace, isDef, UnknownProp } from '../utils';
 
 // Composition
 import { useEventListener } from '@vant/use';
@@ -45,9 +45,9 @@ export const popupSharedProps = {
   // teleport
   teleport: [String, Object] as PropType<TeleportProps['to']>,
   // overlay custom style
-  overlayStyle: Object,
+  overlayStyle: Object as PropType<CSSProperties>,
   // overlay custom class name
-  overlayClass: null,
+  overlayClass: UnknownProp,
   // Initial rendering animation
   transitionAppear: Boolean,
   // whether to show overlay