Add snapshot picture to push notifications

Aaron

Pictures in push notifications are supported by both Android and Apple (iOS 10). This would be very helpful.

https://developer.android .com/reference/android/app/Notification.BigPictureStyle

https://developer.apple .com/videos/play/wwdc2017/817/
https://developer.apple .com/notifications/

Lorenz

@aaron Hi Aaron, thank you for the suggestion. We plan to add thumbnails to push notifications in a future update. Stay tuned!