Include sender's avatar in notification preview

[e-caste]

Is your feature request related to a problem? Please describe. It would be nice if the notifications implemented the standard introduced with iOS 15 of showing the avatar of the sender.

From the Apple docs:

in a communication notification, the system displays the sender’s contact image — or avatar — badged with a small version of your icon

So I guess the keyword here is communication notification, which you can find documented on Apple Developer here.

Describe the solution you'd like

An example of a communication notification from Telegram vs what Nextcloud Talk currently displays

Describe alternatives you've considered Not relevant.

Additional context Using Nextcloud Talk iOS 14.0.0.