redo pipewire module

Signed-off-by: unexplrd <unexplrd@linerds.us>

modules/nixos/desktop/niri.nix

@@ -7,12 +7,12 @@
 with lib; let
   cfg = config.desktop.niri;
 in {
-  imports = [./common/pipewire.nix];
   options = {
     desktop.niri.enable =
       mkEnableOption "enable niri desktop";
   };
   config = mkIf cfg.enable {
+    sound.pipewire.enable = true;
     programs.niri.enable = true;
     environment.systemPackages = with pkgs; [
       brightnessctl