Add Hyprland and Greetd configurations; update desktop settings and user examples

home/panotaka/common/optional/desktops/hyprland/hypridle.nix

@@ -0,0 +1,37 @@
+{pkgs, ...}: {
+  services.hypridle = {
+    enable = true;
+    settings = {
+      general = {
+        lock_cmd = "pidof hyprlock || hyprlock";
+        before_sleep_cmd = "loginctl lock-session";
+        after_sleep_cmd = "hyprctl dispatch dpms on";
+      };
+
+      listener = [
+        {
+          timeout = 150;
+          on-timeout = "brightnessctl -s set 10";
+          on-resume = "brightnessctl -r";
+        }
+        {
+          timeout = 300;
+          on-timeout = "loginctl lock-session";
+        }
+        {
+          timeout = 330;
+          on-timeout = "hyprctl dispatch dpms off";
+          on-resume = "hyprctl dispatch dpms on";
+        }
+        {
+          timeout = 1800;
+          on-timeout = "systemctl suspend";
+        }
+      ];
+    };
+  };
+
+  home.packages = with pkgs; [
+    hypridle
+  ];
+}