Add specific SSL subdomains

Fixes this error:

> Websites prove their identity via certificates. LibreWolf does not
trust this site because it uses a certificate that is not valid for
nixedo.oliverdavies.uk. The certificate is only valid for the following
names: jellyfin.oliverdavies.uk, oliverdavies.uk, www.oliverdavies.uk
>
> Error code: SSL_ERROR_BAD_CERT_DOMAIN

hosts/nixedo/modules/acme.nix

@@ -12,7 +12,12 @@
         environmentFile = config.age.secrets.cloudflare.path;
         webroot = null;
 
-        extraDomainNames = [ "*.oliverdavies.uk" ];
+        extraDomainNames = [
+          "code.oliverdavies.uk"
+          "jellyfin.oliverdavies.uk"
+          "nixedo.oliverdavies.uk"
+          "www.oliverdavies.uk"
+        ];
       };
     };
   };