In a conference, with this patch, the user is able to share
a media while keeping the camera. The mute button for the camera
only control the camera and we use requestMediaChange to add medias.
To stop sharing a media, the user will click on the dedicated button.
If the peer is not compatible with multistream, the behavior will
be the same as before
https://git.jami.net/savoirfairelinux/jami-project/-/issues/1429
Change-Id: If5e0634be6d0d06900ad82554b32a524fd4db36c
Because the call and the conversation's requests are not related,
we can receive a call before the conversation's request. In this
case, a duplicate was created when accepting the call.
Moreover, accepting a call is now separated from accepting a contact,
like the android client (and accepting a conversation needs an explicit
action from the user).
Change-Id: I7c3eb34b7e121b63f1b8c99d084a5165054670d5
