message: frontend: Make GlobalNotifications a stateless functional component
diff: import React from 'react';
  +
  import { LicenseNotifier } from './license-notifier';
  -export class GlobalNotifications extends React.Component {
  - render() {
  - return <div className="co-global-notifications">
  +export const GlobalNotifications = () => <div className="co-global-notifications">
  <LicenseNotifier />
  </div>;
  - }
  -}
  