message: Fix TypeScript compile errors
diff: */
  import React, { FunctionComponentFactory } from 'react';
  import { Button } from './Button';
  -import { MemoryRouter, Route, useLocation } from 'react-router-dom';
  +import { MemoryRouter, useLocation } from 'react-router-dom';
  import { createRouteRef } from '@backstage/core-api';
  import {
  Divider,
  - Grid,
  Link,
  List,
  ListItem,
  ListItemText,
  - ListSubheader,
  Typography,
  Button as MaterialButton,
  } from '@material-ui/core';
  