Payment method on add/edit form

From @bojanz on slack:

The payment method add/edit form is broken on the user pages for 2.14, for any onsite gateway that uses jquery's form.submit, because that doesn't set the triggering element name.

see the 3-line fix in https://www.drupal.org/project/commerce_authnet/issues/3069640

This issue is just a reminder to check if the problem exists, and I added the meta issue in related issues to track all onsite payment gateways.