completely refactor and modularize flake

modules/default/home-manager/desktop/hyprland/hypridle.nix

@@ -0,0 +1,40 @@
+{ lib, config, ... }:
+{
+  home-manager.users.willifan = {
+  services.hypridle = lib.mkIf config.desktop.hypridle.enable {
+    enable = true;
+    settings = {
+        
+      general = {
+        lock_cmd = "pidof hyprlock || hyprlock";       # avoid starting multiple hyprlock instances.
+        before_sleep_cmd = "loginctl lock-session && sleep 2";    # lock before suspend.
+        after_sleep_cmd = "hyprctl dispatch dpms on";  # to avoid having to press a key twice to turn on the display.
+      };
+
+      listener = [
+        #{
+        #  timeout = 150;                                # 2.5min.
+        #  on-timeout = brightnessctl -s set 10;         # set monitor backlight to minimum, avoid 0 on OLED monitor.
+        #  on-resume = brightnessctl -r;                 # monitor backlight restor.
+        #}
+
+        {
+          timeout = 300;                                 # 5min
+          on-timeout = "loginctl lock-session";            # lock screen when timeout has passed
+        }
+
+        {
+          timeout = 380;                                 # 5.5min
+          on-timeout = "hyprctl dispatch dpms off";        # screen off when timeout has passed
+          on-resume = "hyprctl dispatch dpms on";          # screen on when activity is detected after timeout has fired.
+        }
+
+        {
+            timeout = 600;                               # 30min
+            on-timeout = "systemctl suspend-then-hibernate"; # suspend pc
+        }
+      ];
+    };
+  };
+  };
+}