Support SSL certificate with Subject Alternative Names

[neonwhisper]

Issue: Unable to make the blog accessible at the apex domain and www due to the SSL certificate. A CNAME record at the DNS level doesn't cut it.

Suggestion: Make it possible to add both the apex domain and www in the custom domain settings and supporting SSL certificates with SAN. I believe it can be done with Let's encrypt

Standard Notes is really onto something with the Listed blogging platform, would be great to add this feature so users can use their apex domain with www or other subdomain.
I currently made it accessible at blog.os3.xyz and it frees up having something else at the apex, but in the future, especially as the platform improves even further, ill move it up.

Thanks for considering it

[salixh5]

What I've done in the meantime is run a webserver at www (with a valid cert) that just redirects everything to the apex. It would be very nice not having to do that, though.