Code refactoring

Author: BobsProgrammingAcademy

src/layout/Sidebar.js

@@ -1,5 +1,7 @@
 import { Link } from 'react-router-dom';
 import PropTypes from 'prop-types';
+
+// Material UI
 import Avatar from '@mui/material/Avatar';
 import Box from '@mui/material/Box';
 import Drawer from '@mui/material/Drawer';