Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

See also:
https://daniel.haxx.se/blog/2023/01/08/copyright-without-years/
https://hynek.me/til/copyright-years/

This should match what people expect from a chat application much
better. The biggest reason not to do this, is because some people might
paste markdown documents. For those people there is now a /cmark
command, which disables most of our extensions to cmark, including the
newline behaviour. There is a long discussion on the Fediverse and on
Github linked below.

Mastodon https://fosstodon.org/@deepbluev7/109771668066978726
fixes #757

relates to #1231

* Initial commit for VoIP v1 implementation

* Added draft of event handlers for voip methods

* Added event handlers for VoIP events, added rejectCall, added version tracking for call version for V0 and V1 compatibility

* Added call events to the general message pipeline. Modified Call Reject mechanism

* Added message delegates for new events. Modified hidden events. Updated handle events.

* Updated implementation to keep track of calls on other devices

* Fixed linting

* Fixed code warnings

* Fixed minor bugs

* fixed ci

* Added acceptNegotiation method definition when missing gstreamer

* Fixed warnings

* Fixed linting

see #1042
see #483

fixes #439
Workaround for https://bugreports.qt.io/browse/QTBUG-97401
fixes #810

Fixes an issue where most uses just had their color determined by their
username length and distributes the colors a bit more evenly.