Fix/game closed event on main win close

[BrettCleary]

Summary

Give game launch handlers 1 second on main window close to clean up (i.e. sync playsession and send game closed event).

closes https://github.com/HyperPlay-Gaming/PX-PM/issues/21

also fixes an issue where call all abort controllers was not working on main window close

Testing

https://app.qase.io/case/HC-528

[BrettCleary]

Pretty sensitive code. Will need your review on this one @flavioislima