fix: 修复info类型button的样式特殊处理

public/theme/element-extra.css

@@ -1,6 +1,12 @@
 /* 这里只写element-variables里面改不动的、且和主题系列颜色相关的样式！！！ */
 /* 主题相关看该文件夹下的README.md */
 
+/* info type special treatment */
+.el-button--info {
+  background-color: info;
+  border-color: info;
+}
+
 .el-alert--info.is-light {
   background-color: light-9;
   color: light-2;

src/utils/theme/index.js

@@ -19,7 +19,6 @@ export function changeElementColor(themeColors) {
     if (['primary', 'success', 'info', 'warning', 'danger'].includes(key)) {
       const blendColor = mix('ffffff', value.replace(/#/g, ''), 35)
       colorsCssText = colorsCssText + `
-        .el-button--${key},
         .el-button--${key}:focus {
           background-color: ${value}!important;
           border-color: ${value}!important;