feat(Input): textarea should support hasClea close #4334

[YunMeng99]

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[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (0fed23b) 90.76% compared to head (09dbe25) 90.95%.
Report is 25 commits behind head on master.

❗ Current head 09dbe25 differs from pull request most recent head 32c1725. Consider uploading reports for the commit 32c1725 to get more accurate results

Files	Patch %	Lines
src/input/textarea.jsx	65.21%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4642      +/-   ##
==========================================
+ Coverage   90.76%   90.95%   +0.19%     
==========================================
  Files         305      305              
  Lines       17903    18162     +259     
  Branches     5405     5378      -27     
==========================================
+ Hits        16249    16519     +270     
+ Misses       1637     1626      -11     
  Partials       17       17              

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[YSMJ1994]

1. 参考issue#4334 内给出的视觉图片设计icon位置，把清除文本替换为 icon即可
2. 需要在docs/input/demo/clear.md内补充 TextArea组件的 hasClear = true 的示例

[YSMJ1994]

@YunMeng99

1. 影响了input
2. 与limitHint 不对齐
3. 渲染逻辑需要优化，分隔符最好通过css after来实现