Datetime for notification

[ChristianKleineidam]

When looking at the notifications it's often hard to know which one I already read before. It would be great if I would see the datetime of the notifications to inform myself.

┆Issue is synchronized with this Trello card by Unito

[movationdesign]

I agree. It's a bit confusing right now.

[Discordius]

Yep, seems like a good idea. We already have the data, so doing that should be trivial.