browser (calls): update call to handle search, control buttons, and better UI/UX: - adapt to backend changes - UI and WebRTC parts are not separated - users can now be searched - add mute/fullscreen buttons - ring - cancellable dialog when a call is received - status of the call - animations - various UI/UX improvments rel 423

You'll find install instructions in documentation (see doc/installation.rst).

If you need help, come the Libervia official XMPP room: xmpp:libervia@chat.jabberfr.org?join or join us with a web browser via https://chat.jabberfr.org/converse.js/libervia@chat.jabberfr.org