In another installment of "how on earth?!", using a 1px border instead of a
0.2px border fixes view clipping on a device where it didn't work before
(Moto X Play).

Observations:

- When nothing was rendered, rotating the device made the buttons show up, this
  makes me think the Surface is not properly composited with the toolbar view
  for some reason. Why this happens in some devices and not in others remains a
  mistery.

Other approaches attempted:

- Setting View.collapsed to false so it will remain in the view hierarchy. It
  made no effect.

- Setting View.needsOffscreenAlphaCompositing to true. It made no effect.

Just like before, I came up with this workaround by accident, but couldn't find
another way, so here we go again.

As a step toward merging jitsi-meet-react with jitsi-meet to share as
much source code as possible between mobile and Web, merge the part of
jitsi-meet-react's source tree which supports mobile inside the
jitsi-meet source tree and leave jitsi-meet-react's Web support in the
source code revision history but don't have it in master anymore because
it's different from jitsi-meet's Web support. In other words, the two
projects are mechanically merged at the file level and don't really
share source code between mobile and Web.

As an intermediate step on the path to merging jitsi-meet and
jitsi-meet-react, import the whole source code of jitsi-meet-react as it
stands at
2f23d98424
i.e. the lastest master at the time of this import. No modifications are
applied to the imported source code in order to preserve a complete
snapshot of it in the repository of jitsi-meet and, thus, facilitate
comparison later on. Consequently, the source code of jitsi-meet and/or
jitsi-meet-react may not work. For example, jitsi-meet's jshint may be
unable to parse jitsi-meet-react's source code.