feat(nixos): migrate navidrome to pikachu

configs/nixos/guests/reverse-proxy.nix

@@ -23,11 +23,6 @@ in
             enableACME = true;
             locations."/".proxyPass = "http://10.23.20.32";
           };
-          "music.alexion.dev" = {
-            forceSSL = true;
-            enableACME = true;
-            locations."/".proxyPass = "http://10.23.20.32";
-          };
           "photos.alexion.dev" = {
             forceSSL = true;
             enableACME = true;