message: Add headers to settings app
diff: policy.authenticate(user.get('access_token'))
  customer.authenticate(user.get('access_token'))
  + headers = {
  + 'X-AUTH-TOKEN': user.get('access_token'),
  + }
  +
  Promise.all [
  - user.fetch()
  + user.fetch({ headers })
  policy.fetch()
  customer.fetch()
  .catch -> #
  