src/dynamics/video_call/controlbar/call_controlbar.html
<div class="ba-call-controlbar">
<button class="ba-call-mute-btn" ba-click="{{toggle_mute()}}">{{string('mute-button')}}</button>
<button class="ba-call-camera-btn" ba-click="{{toggle_camera()}}">{{string('camera-button')}}</button>
<button class="ba-call-leave-btn" ba-click="{{leave_call()}}">{{string('leave-button')}}</button>
</div>