Support single-key keyboard backlight cycling (#4672)

* Support single-key keyboard backlight cycling (like Asus F4) and add keyboard specific OSD icon

* We don't need an alias

---------

Co-authored-by: Ryan Latimer <ryan@example.com>
Co-authored-by: David Heinemeier Hansson <david@hey.com>

bin/omarchy-swayosd-kbd-brightness

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Display keyboard brightness level using SwayOSD on the current monitor.
+# Usage: omarchy-swayosd-kbd-brightness <percent>
+
+percent="$1"
+
+progress="$(awk -v p="$percent" 'BEGIN{printf "%.2f", p/100}')"
+[[ "$progress" == "0.00" ]] && progress="0.01"
+
+swayosd-client \
+  --monitor "$(hyprctl monitors -j | jq -r '.[]|select(.focused==true).name')" \
+  --custom-icon keyboard-brightness \
+  --custom-progress "$progress" \
+  --custom-progress-text "${percent}%"