Feature request: Remove correspondence notifications after they are no longer relevant

[jmdana]

Use-case example:

1. The user receives a notification because the opponent made a move in a correspondence game.
2. The user opens the website (PC) and makes a move in the game (at this point the notification from the mobile app is no longer relevant).
3. The mobile app removes the notification after detecting that the game has been updated.

I have seen this behavior in other apps and it would be nice to have for people (like me) that use the mobile app but prefer to make the moves in a PC.

Thank you for the great app it is looking great!