Extract a pipewire mixin

hosts/t480/configuration.nix

@@ -12,6 +12,7 @@
     ../../modules/mixins/bluetooth.nix
     ../../modules/mixins/docker.nix
     ../../modules/mixins/phpactor
+    ../../modules/mixins/pipewire.nix
     ../../modules/mixins/thunar.nix
 
     ../common

hosts/t480/services/default.nix

@@ -2,7 +2,6 @@
   imports = [
     ./cron.nix
     ./interception-tools.nix
-    ./sound.nix
     ./udev.nix
     ./xserver.nix
   ];

hosts/t480/services/sound.nix

@@ -1,12 +0,0 @@
-{
-  services.pipewire = {
-    enable = true;
-
-    alsa = {
-      enable = true;
-      support32Bit = true;
-    };
-
-    pulse.enable = true;
-  };
-}