Some CSS fixes are also included.

Related to #5697.

The target parameter from window.open was missing which was causing
reload in electron.

* 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

Re-do of
86ebfe8dad

Otherwise it won't be visible if Dark Mode is enabled.

Because it displays "undefined" in the title.

This reverts commit 86ebfe8dad.

This reverts commit faf24ca7ec.

Fixes #5480

Signed-off-by: Ruben Kerkhof <ruben@rubenkerkhof.com>

This reverts commit 08f55ccb94.

Add ability to invite users which will use the share sheet or dialog
dynamically.

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

When the reccorder joins, they have a local participant, which is not rendered,
so don't count it towards the partcipant count used for computing the tile
sizes.

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.