!7782 【轻量级 PR】：Badge右侧圆点不显示问题修改

Merge pull request !7782 from 张齐齐/N/A

zh-cn/application-dev/reference/arkui-ts/ts-container-badge.md

@@ -89,7 +89,7 @@ struct BadgeExample {
       }.width(80).height(50)
 
       Badge({
-        value: '',
+        value: ' ',
         position: 1,
         style: { badgeSize: 6, badgeColor: Color.Red }
       }) {