* Expose toggle buttons better via ARIA

* Wire up the divs/li as role=button as per ARIA patterns

* Add flow annotations to appease the linter

* For role=button use aria-pressed not aria-checked

This reverts commit faf24ca7ec.

This reverts commit 08f55ccb94.

- re-add thepand icon, shaped like a pill
- round top corners

Logs the device list when is updated in the reducer and removes
"button enabled" logging which used to dump the device list, but
in a useless way(Object[Object]).

Makes an attempt to log currently selected device, but because of
multiple possible paths it's impossible to find one reliable spot to log
selected device. One has to rely on device list and the GUM call logged
to figure things out.

This has the side effect of showing the bottom navbar when the toolbox is open,
which is a nice thing since back is accessible.

It's been considered too disruptive and will often misfire especially
if there are issues with the data channels.

This will let us enable/disable the feature based on environment/deployment

When the location URL contains a nonstandard port, it won't be included in
URL.hostname, but it will in URL.host.

The resolved promise is expected to return an array.

* Fix chrome extension banner

* Address reviews

Config.js will allow to specify both BOSH and Websocket URLs. In such
case the web app will prefer Websocket over BOSH. The reason is that it
appears to be more stable and a bit fast on web, while on mobile
websocket is dropped fast(killed by the OS) on network changes.

* ref(Filmstrip): Optimize resizes.

* fix(thumbnails): resize.

* fix(thumbnails): Issue with height 0, width 0.

* doc(Filmstrip): Improve JSDoc.

When ensureTrack is set to true a track will be created with the given media
type. 'presenter' is not supported on RN.

Move call to reloadNow() on CONNECTION_FAILED to
the ./features/app/middleware to avoid importing higher order feature
from the lower level one.

Do not return anything from JitsiConnection.connect, because it's not
a promise and returns void. Doing so is confusing to the reader.