refactor(wayland.utility): utility modules, add gammastep/tools

home/modules/desktop/wayland/utility/gammastep/default.nix

@@ -0,0 +1,20 @@
+{ lib, config, ... }:
+
+let
+  cfg = config.homeModules.desktop.wayland.utility.gammastep;
+in
+
+{
+  config = lib.mkIf cfg.enable {
+    services.gammastep = {
+      enable = true;
+      enableVerboseLogging = true;
+      provider = "geoclue2";
+      temperature = {
+        day = 6000;
+        night = 4000;
+      };
+      settings.general.adjustment-method = "wayland";
+    };
+  };
+}