Update battery icon promptly on power changes

bin/omarchy-power-present

@@ -2,8 +2,13 @@
 
 # omarchy:summary=Returns true if external power is connected.
 
-for ac in /sys/class/power_supply/AC* /sys/class/power_supply/ADP*; do
-  [[ -r $ac/online && $(cat "$ac/online") == "1" ]] && exit 0
+power_supply_path="${OMARCHY_POWER_SUPPLY_PATH:-/sys/class/power_supply}"
+
+for supply in "$power_supply_path"/*; do
+  [[ -r $supply/online && -r $supply/type ]] || continue
+  type=$(<"$supply/type")
+  [[ $type == "Mains" || $type == "USB" ]] || continue
+  [[ $(<"$supply/online") == "1" ]] && exit 0
 done
 
 exit 1