chore: prettier source code

src/toast/demo/index.vue

@@ -69,7 +69,7 @@ export default {
       text3: '失败文案',
       customIcon: '自定义图标',
       customImage: '展示图片',
-      text4: second => `倒计时 ${second} 秒`,
+      text4: (second) => `倒计时 ${second} 秒`,
       longTextButton: '长文字提示',
       updateMessage: '动态更新提示',
       loadingType: '自定义加载图标',
@@ -87,7 +87,7 @@ export default {
       text3: 'Fail',
       customIcon: 'Custom Icon',
       customImage: 'Custom Image',
-      text4: second => `${second} seconds`,
+      text4: (second) => `${second} seconds`,
       longTextButton: 'Long Text',
       updateMessage: 'Update Message',
       loadingType: 'Loading Type',