Add a toggle for touchscreen on supported devices (#5510)

* Add minimum brightness cap to prevent OLED displays turning off

* Revert "Add minimum brightness cap to prevent OLED displays turning off"

This reverts commit fe855ecf9aeacfa1b9ffcff3d43adb10908435e5.

* Add touchscreen toggle support

* Use finger glyph

---------

Co-authored-by: David Heinemeier Hansson <david@hey.com>

bin/omarchy-menu

@@ -194,10 +194,15 @@ show_hardware_menu() {
     options="$options\n󰟸  Touchpad"
   fi
 
+  if omarchy-hw-touchscreen; then
+    options="$options\n󰆽  Touchscreen"
+  fi
+
   case $(menu "Toggle" "$options") in
   *Laptop*) omarchy-hyprland-monitor-internal toggle ;;
   *Mirror*) omarchy-hyprland-monitor-internal-mirror toggle;;
   *Touchpad*) omarchy-toggle-touchpad ;;
+  *Touchscreen*) omarchy-toggle-touchscreen ;;
   *"Hybrid GPU"*) present_terminal omarchy-toggle-hybrid-gpu ;;
   *) back_to show_trigger_menu ;;
   esac