message: fix importto avoid console warning
diff: -import { createBrowserHistory } from 'history';
  -import createMemoryHistory from 'history/createMemoryHistory';
  +import { createBrowserHistory, createMemoryHistory } from 'history';
  import { toValidDuration } from '../config/ServerConfig';
  const webRoot = (window as any).WEB_ROOT ? (window as any).WEB_ROOT : undefined;
  