Add an option to AutoPrint - Run bed clearing after prints finished#624

At the moment the bed clearing only runs between jobs in the queue. However if the printer has finished all of its prints then the final print will stay on the bed

I would like to see a toggleable option to run the bed clearing procedure after the final print. At the moment the final print stays on the printer, so I can’t run another job until I manually go over and clear that plate off