ConfigProvider 设置 iconPrefixCls，@ant-design/icons-vue 的 icon 样式并没有变化过来 #7147
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
Version
4.0.7
Environment
ant-design-vue@4.0.6
Reproduction link
Steps to reproduce
ConfigProvider.config({
prefixCls: 'antvprefix',
iconPrefixCls: 'antviconprefix',
});
带icon的 a-button 会生成样式对应的样式如下：
.antvprefix-btn >span .antviconprefix{margin-inline-start:8px;}
但是生成的dom结构里面icon的样式为anticon anticon-plus，iconPrefixCls 属性没有注入到 ant-design/icons-vue 中
What is expected?
iconPrefixCls 属性注入到 ant-design/icons-vue 中生成的icon的样式为 antviconprefix antviconprefix-plus
What is actually happening?
icon 的样式名还是默认的前缀 anticon anticon-plus