12.0 change edit wiki page style (#6109)

* 00 change className from app

* change wiki2 side panel style

frontend/src/pages/wiki2/view-structure/nav-item-icon.jsx

@@ -0,0 +1,21 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import Icon from '../../../components/icon';
+import classNames from 'classnames';
+import './nav-item-icon.css';
+
+function NavItemIcon({ symbol, className, disable }) {
+  return (
+    <div className={classNames('nav-item-icon', {'nav-item-icon-disable': disable})}>
+      <Icon symbol={symbol} className={className} />
+    </div>
+  );
+}
+
+NavItemIcon.propTypes = {
+  symbol: PropTypes.string.isRequired,
+  className: PropTypes.string,
+  disable: PropTypes.bool,
+};
+
+export default NavItemIcon;