audio: disable avahi-daemon if resolved is used

as it also supports mdns

modules/audio.nix

@@ -31,7 +31,7 @@ in
     security.rtkit.enable = true;
 
     services = {
-      avahi = {
+      avahi = lib.mkIf (!config.services.resolved.enable) {
         enable = true;
         nssmdns = true;
       };