Change StopwatchNode.options.dragEndListener => StopwatchNode.options.dragListenerOptions.end, see https://github.com/phetsims/gas-properties/issues/170
Change StopwatchNode.options.dragEndListener => StopwatchNode.options.dragListenerOptions.end, see https://github.com/phetsims/gas-properties/issues/170

phetsims/scenery-phet,phetsims/scenery-phet,phetsims/scenery-phet