Automatically switch power profile when plugged in (balanced) and unplugged (power saver) (#4375)

* Set Power Profiles Rules when plugged in (balanced) and unplugged (power-saver)"

* Check for battery presence before installing power profile rules

* Add battery presence check script and update powerprofilesctl rules

* fix indentation

* Simplify power profile rule creation logic

bin/omarchy-battery-present

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+for bat in /sys/class/power_supply/BAT*; do
+  [[ -r "$bat/present" ]] &&
+  [[ "$(cat "$bat/present")" == "1" ]] &&
+  [[ "$(cat "$bat/type")" == "Battery" ]] &&
+  exit 0
+done
+
+exit 1