diff --git a/web/app.react.js b/web/app.react.js
--- a/web/app.react.js
+++ b/web/app.react.js
@@ -3,6 +3,7 @@
import 'basscss/css/basscss.min.css';
import './theme.css';
import { config as faConfig } from '@fortawesome/fontawesome-svg-core';
+import classnames from 'classnames';
import _isEqual from 'lodash/fp/isEqual';
import * as React from 'react';
import { DndProvider } from 'react-dnd';
@@ -187,13 +188,26 @@
navigationArrows =