fix(components): [notification] option zIndex for notification can't effect (#10796)

option zIndex for notification can't effect

`options.zIndex` is not effective since it is write before `zIndex: nextZIndex()`， it will be overode.

packages/components/notification/src/notify.ts

@@ -50,8 +50,8 @@ const notify: NotifyFn & Partial<Notify> & { _context: AppContext | null } =
     const id = `notification_${seed++}`
     const userOnClose = options.onClose
     const props: Partial<NotificationProps> = {
-      ...options,
       zIndex: nextZIndex(),
+      ...options,
       offset: verticalOffset,
       id,
       onClose: () => {