completely refactor and modularize flake

modules/default/common/desktop/hyprland.nix

@@ -0,0 +1,18 @@
+{ lib, config, ... }:
+lib.mkIf config.desktop.autologin.enable {
+
+  security.pam.services.hyprlock = {};
+
+
+  services.greetd = {
+    enable = true;
+     settings = rec {
+      initial_session = {
+        command = ''Hyprland'';
+        user = "willifan";
+      };
+      default_session = initial_session;
+    };
+  };
+
+}