add pulseaudio tools

modules/nix/audio/pipewire.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 let
   inherit (lib) mkIf mkOption types;
 in
@@ -27,5 +27,6 @@ in
         };
       };
     };
+    environment.systemPackages = with pkgs; [ pulseaudioFull ];
   };
 }