Talk-android: Smart notifications

[mario]

[mario]

@Ivansss @nickvergessen this is basically:

• first notification in a conversation: show
• following notifications if first one is not dismissed: on second one, show "You have more new messages" or so. Ignore third and following notification in the conversation until dismissed.

[mario]

Will be configurable and disabled by default for one-to-one conversations. (which is the only type where this makes sense until group/public calls get notifications on every message)

[nickvergessen]

I would always do this, without configuration

[mario]

We can do that too :)

[pwFoo]

With webpush api / browser it's possible to group notifications together. So with 2+ notifications just one is shown. Not possible with the app?

[mario]

Will group and show messages that way instead.