Admin App - Registration List UX Enhancement

As part of the October 16th DMH release, improvements have been made to the user experience when adding or managing items on the Registration List.

The Registration List interface now has an 'Add' tab. This is where all new individual or domain entries are added to the existing list. The 'Add' tab support a lookup of Account and Role names so the user no longer needs to know specific object ids. The individual configs are managed via the 'Emails' tab and the domain configs are managed via the 'Domains' tab. The status for both config lists will display under the 'Status' tab.