style: utilise keep-sorted formatter

modules/home-manager/bundles/desktop.nix

@@ -1,12 +1,18 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  ...
+}:
 let
   feature = "desktop";
 in
 {
   config = lib.mkIf config.${feature}.enable {
+    # keep-sorted start
     kitty.enable = true;
     obsidian.enable = true;
     zellij.enable = true;
+    # keep-sorted end
   };
 
   imports = [ ];