Loosen the custom-domain regex to accept apex domains (1+ labels) in
addition to subdomains; the TLD already allowed any letters. Suppress
the CNAME record for apex hostnames since a CNAME is invalid at the zone
apex, and surface only the A record there. Drop the frontend apex
rejection and the misleading ".com" input suffix, and render the
domain-input prefix/suffix addons only when set.
Rotimi Best
c97284f870