Commits on Feb 9, 2022

1. Adds content descriptions for in-call buttons …

   Fixes signalapp#9774
   
   Previously, when in a WebRTC call and using Talkback, the dailer
   buttons would read, from right to left:
   - unlabelled button
   - (on/off) switch
   - (on/off) switch
   - unlabelled button (when showing flip)
   
   now, when in a WebRTC call and using Talkback, with video and audio
   enabled, the dailer buttons will read (from right to left):
   - end call button
   - on unmute switch
   - on camera switch
   - flip button
   
   when in a WebRTC call and using Talkback with video off and audio
   muted, the dailer buttons will read (from right to left):
   - end call button
   - off unmute switch
   - off camera switch
   - flip button
   
   I do think that it would likely be a better user experience if the
   "flip" button read "flip to front camera" or "flip to back camera"
   but it looks like that may be fairly complicated and above my
   skills at this time. As it seems like this issue has been open for
   a long time, maybe it's helpful to merge the initial PR, then have
   someone else follow up later?

   

   clado committed Feb 9, 2022
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