message: Add spinner while waiting for login
diff: @@ -77,7 +77,9 @@ export default abstract class BaseCommand extends Command {
  this.log(`If that does not happen, click ${terminalLink('here', loginHref)}.`);
  await Cli.open(loginHref);
  + Cli.action.start('Waiting for login');
  const accessToken = await this.waitForAccessToken(ticket, ticketExpiration);
  + Cli.action.stop('');
  if (!accessToken) {
  throw new CLIError('Failed to login.');
  }
  