Messages GUI Issue

@Gordon yeah, I have noticed some inconsistencies with the way notifications are sent to devices:

• Notifications are handled in the NotificationListener - this includes both sending and handling the dismissals. The NotificationListener keeps a lookup queue that maps notifications by ID.
  
• However, SMS are sent by the SMSReceiver. This gets the SMS event directly, which does not map to a notification on the phone. When trying to dismiss it from NotificationListener, it will fail.
  
  

Additionally to this, I don't think we're setting the notification ID correctly when creating the NotificationSpec, so it's always incrementing, even for updates of the same notification.

I did not have too much time to look into this yet, but it's definitely a bug on Gadgetbridge that's affecting all devices.