message: packages/storybook: added mock identity api
diff: @@ -2,6 +2,7 @@ import {
  ApiRegistry,
  alertApiRef,
  errorApiRef,
  + identityApiRef,
  oauthRequestApiRef,
  OAuthRequestManager,
  googleAuthApiRef,
  @@ -19,6 +20,12 @@ const alertApi = builder.add(alertApiRef, new AlertApiForwarder());
  builder.add(errorApiRef, new ErrorAlerter(alertApi, new ErrorApiForwarder()));
  +builder.add(identityApiRef, {
  + getUserId: () => 'guest',
  + getIdToken: () => undefined,
  + logout: async () => {},
  +});
  +
  const oauthRequestApi = builder.add(
  oauthRequestApiRef,
  new OAuthRequestManager(),
  