Domains pointing to server without an EasyEngine site go to first site #1788
Description
As the title suggests, if I point a domain to my server, such as example.com, but EasyEngine doesn't have a site for this domain, then it resolves the first site, rather than returning an error.
This can be seen in action on my server, with the domain https://poi.joebailey.xyz pointing to my server, but EasyEngine has no record for this so forwards it to https://blossomtreephoto.com
This feels very similar to the issue and discussion here:
#1777
#1616