style：图标样式

src/web/staticres/css/selector/selector.css

@@ -533,6 +533,7 @@
   color: #aaa;
   font-size: 15px;
   right: -4px;
+  font-weight: normal;
 }
 .area-city-country .el-tag__close.el-icon-close:hover {
   color: #2ABED1;