Seperated all config stuff into common nixos modules

modules/nixos/audio.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+  };
+}