chore: prefer named exports (#8315)

* chore: prefer named exports

* chore: fix import

src/submit-bar/SubmitBar.tsx

@@ -2,8 +2,8 @@ import { PropType, CSSProperties, defineComponent } from 'vue';
 import { createNamespace } from '../utils';
 
 // Components
-import Icon from '../icon';
-import Button, { ButtonType } from '../button';
+import { Icon } from '../icon';
+import { Button, ButtonType } from '../button';
 
 const [name, bem, t] = createNamespace('submit-bar');
 

src/submit-bar/demo/index.vue

@@ -43,7 +43,7 @@
 <script lang="ts">
 import { ref } from 'vue';
 import { useTranslate } from '@demo/use-translate';
-import Toast from '../../toast';
+import { Toast } from '../../toast';
 
 const i18n = {
   'zh-CN': {

src/submit-bar/test/index.spec.ts

@@ -1,4 +1,4 @@
-import SubmitBar from '..';
+import { SubmitBar } from '..';
 import { mount } from '../../../test';
 
 test('should emit submit event when submit button is clicked', () => {