chore: prefer named exports (#8315)

* chore: prefer named exports

* chore: fix import

src/notice-bar/NoticeBar.tsx

@@ -1,4 +1,6 @@
 import { ref, watch, reactive, PropType, defineComponent } from 'vue';
+
+// Utils
 import { isDef, createNamespace } from '../utils';
 
 // Composables
@@ -11,7 +13,7 @@ import {
 } from '@vant/use';
 
 // Components
-import Icon from '../icon';
+import { Icon } from '../icon';
 
 export type NoticeBarMode = 'closeable' | 'link';
 

src/notice-bar/test/index.spec.tsx

@@ -1,4 +1,4 @@
-import NoticeBar from '..';
+import { NoticeBar } from '..';
 import { mount, later } from '../../../test';
 
 test('should emit close event when close icon is clicked', () => {