refactor: nix fmt classic to nix fmt

hosts/desktop.nix

@@ -1,12 +1,11 @@
 { lib, pkgs, ... }:
 let
-  hardwareConfigPath = builtins.toString ./.
-    + "/../modules/nixos/desktops/hardware-configuration.nix";
-  hardwareModule = if builtins.pathExists hardwareConfigPath then
-    import hardwareConfigPath
-  else
-    (_: { });
-in {
+  hardwareConfigPath =
+    builtins.toString ./. + "/../modules/nixos/desktops/hardware-configuration.nix";
+  hardwareModule =
+    if builtins.pathExists hardwareConfigPath then import hardwareConfigPath else (_: { });
+in
+{
   # Unified desktop configuration for gaming and development
   # Includes both KDE Plasma and Hyprland - switch at login screen
 

hosts/dev-vm.nix

@@ -1,4 +1,5 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   networking.hostName = "dev-vm";
   # Set the baseline NixOS release used for stateful data; bump on rebuilds.
   system.stateVersion = lib.mkDefault "24.05";