Re-add Redux DevTools to App.jsx

Author: catarak

client/modules/App/App.jsx

@@ -2,11 +2,9 @@ import PropTypes from 'prop-types';
 import React from 'react';
 import { connect } from 'react-redux';
 import getConfig from '../../utils/getConfig';
-// import DevTools from './components/DevTools';
+import DevTools from './components/DevTools';
 import { setPreviousPath } from '../IDE/actions/ide';
 
-const DevTools = () => <></>;
-
 class App extends React.Component {
   constructor(props, context) {
     super(props, context);