add battery control for syncthing

lowbat.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+SERVICE="syncthing"
+if pgrep -x "$SERVICE" >/dev/null
+then
+    ## notify user that syncthing is stopping
+    notify-send -a $SERVICE -h "string:desktop-entry:org.kde.konsole" "Lowbatts, terminating $SERVICE to save power." "Recharge before using $SERVICE." --icon=dialog-information
+    ## kill syncthing
+    syncthing cli operations shutdown
+fi