feat(desktop): move window-manager config to homes and use home-manager modules

modules/nixos/desktop/window-manager/hyprland/default.nix

@@ -0,0 +1,47 @@
+{ config, lib, ... }:
+let
+  inherit (lib) mkEnableOption mkIf singleton;
+  inherit (config.desktop) mainMonitor;
+  cfg = config.desktop.window-manager.hyprland;
+in
+{
+  options.desktop.window-manager.hyprland = {
+    enable = mkEnableOption "";
+  };
+
+  config = mkIf cfg.enable {
+    desktop.enableWaylandUtilities = true;
+    environment.loginShellInit = # sh
+      ''
+        if [[ -z "$SSH_CLIENT" && -z "$SSH_CONNECTION" ]]; then
+          if uwsm check may-start; then
+            exec uwsm start hyprland-uwsm.desktop
+          fi
+        fi
+      '';
+    environment.variables = {
+      ELECTRON_OZONE_PLATFORM_HINT = "auto";
+      NIXOS_OZONE_WL = "1";
+    };
+    programs.hyprland = {
+      enable = true;
+      withUWSM = true;
+    };
+    home-manager.sharedModules = singleton {
+      wayland.windowManager.hyprland = {
+        enable = true;
+        systemd.enable = false;
+      };
+      xdg.configFile."uwsm/env".text = # sh
+        ''
+          export GDK_SCALE=${mainMonitor.scale}
+          export STEAM_FORCE_DESKTOPUI_SCALING=${mainMonitor.scale}
+        '';
+      xdg.configFile."uwsm/env-hyprland".text = # sh
+        ''
+          export GDK_SCALE=${mainMonitor.scale}
+          export STEAM_FORCE_DESKTOPUI_SCALING=${mainMonitor.scale}
+        '';
+    };
+  };
+}