Allow to hide error messages on frontend

It might make sense to do something similar to logging mailchimp_ecommerce_log_error_message().

Maybe: \Drupal::service('mailchimp_ecommerce.helper')->addErrorMessage();

Then it would be easy to add one check / setting to display all error messages. It looks like all of the messenger addError calls are for API error messages.

Automatically closed - issue fixed for 2 weeks with no activity.