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

install/config/powerprofilesctl-rules.sh

@@ -0,0 +1,26 @@
+if omarchy-battery-present; then
+  mapfile -t profiles < <(omarchy-powerprofiles-list)
+
+  if [[ ${#profiles[@]} -gt 0 ]]; then
+
+    # Default AC profile:
+    # 3 profiles → performance
+    # 2 profiles → balanced
+    # 1 profile  → profiles[0]
+    ac_profile="${profiles[2]:-${profiles[1]:-${profiles[0]}}}"
+
+    # Default Battery profile:
+    # 3 profiles → balanced
+    # 2 profiles → balanced
+    # 1 profile  → profiles[0]
+    battery_profile="${profiles[1]:-${profiles[0]}}"
+
+    cat <<EOF | sudo tee "/etc/udev/rules.d/99-power-profile.rules"
+SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="0", RUN+="/usr/bin/powerprofilesctl set $battery_profile"
+SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="1", RUN+="/usr/bin/powerprofilesctl set $ac_profile"
+EOF
+
+    sudo udevadm control --reload
+    sudo udevadm trigger --subsystem-match=power_supply
+  fi
+fi