community-repo/scripts/validator-report-ui/src/index.tsx

import { Link as RouterLink, Route, Switch } from 'react-router-dom';
import { MemoryRouter as Router } from 'react-router';
import React from 'react';
import ReactDOM from 'react-dom';
import LiveStatsWS from './LiveStatsWS';
import './index.css';
import reportWebVitals from './reportWebVitals';
import ValidatorReport from './ValidatorReport';
import { AppBar, Button, Toolbar } from "@material-ui/core";
import joystream from './joystream.svg';

ReactDOM.render(
  <React.StrictMode>
    <Router>
      <div style={{ flexGrow: 1 }}>
        <AppBar position="static" style={{ flexDirection: 'row', backgroundColor: '#4138ff' }}>
          <Toolbar style={{ paddingLeft: '12px', backgroundColor: '#4138ff' }}>
            <Button color="inherit" component={RouterLink} to="/">
              <img style={{ width: 50, height: 50 }} src={joystream} className="App-logo" alt="Joystream logo" />
            </Button>
            <Button color="inherit" component={RouterLink} to="/">Validator Report</Button>
            <Button color="inherit" component={RouterLink} to="/live">WS Live Stats</Button>
          </Toolbar>
        </AppBar>
      </div>
      <div>
        <Switch>
          <Route path="/live">
            <LiveStatsWS />
          </Route>
          <Route path="/">
            <ValidatorReport />
          </Route>
        </Switch>
      </div>
    </Router>
  </React.StrictMode>,
  document.getElementById('root')
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();