meta: Merge pipewire module with hyprland

Realistically if hyprland is being used then the user *probably* wants
audio as well, so merging them makes sense here.

This commit is a part of ultimately having a single module for "desktop"
usage.

modules/hyprland.nix

@@ -21,4 +21,19 @@
     enable = true;
     excludePackages = [ pkgs.xterm ];
   };
+
+  services.pipewire = {
+    enable = true;
+
+    alsa = {
+      enable = true;
+      support32Bit = true;
+    };
+
+    pulse.enable = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    pulseaudio
+  ];
 }

modules/pipewire.nix

@@ -1,18 +0,0 @@
-{ pkgs, ... }:
-
-{
-  services.pipewire = {
-    enable = true;
-
-    alsa = {
-      enable = true;
-      support32Bit = true;
-    };
-
-    pulse.enable = true;
-  };
-
-  environment.systemPackages = with pkgs; [
-    pulseaudio
-  ];
-}