textarea组件属性栏的showCount属性展示错位

[xfdddc]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

4.2.6

Environment

线上正式版本4.2.6

Reproduction link

https://www.antdv.com/components/input-cn#textarea

Steps to reproduce

无需操作，直接打开组件文档查看属性

What is expected?

修复错位问题

What is actually happening?

无