Fix himalia brightness

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/himalia/hardware/keybinds.nix

@@ -4,10 +4,13 @@
     {
       wayland.windowManager.hyprland.settings =
         let
+          brightnessctl = lib.meta.getExe pkgs.brightnessctl;
           asusctl = "${pkgs.asusctl}/bin/asusctl";
         in
         {
           bindle = [
+            ", XF86MonBrightnessUp, exec, ${brightnessctl} -d intel_backlight -q s 5%+"
+            ", XF86MonBrightnessDown, exec, ${brightnessctl} -d intel_backlight -q s 5%-"
             ", XF86KbdBrightnessUp, exec, ${asusctl} -n"
             ", XF86KbdBrightnessDown, exec, ${asusctl} -p"
           ];