Allow marking a message as time-sensitive

[Pytal]

It would be nice to be able to mark a message as time-sensitive i.e. in Talk you could click a button to set the message as time-sensitive

[nickvergessen]

And what should that mean/do/cause/change?

[Pytal]

On the web it would put the time-sensitive notifications on the top above the rest of the chronologically ordered notifs and on mobile it would use the respecive OS APIs for time-sensitive notifications

There may be more that can be done but those are the initial ideas :)

[nickvergessen]

But then this is nothing the receiver can do, so it would be something we should add on the Talk side of things I guess, as the sender of a chat message would be the one deciding this?