The documented behavior is that it would disable auto-switching to it,
but users would still be available to toggle it.
This change restores that behavior. If the user has selected a layout
that will be preferred before cheching for this setting.
Ref: https://community.jitsi.org/t/how-to-disable-titleview/115093
Fixes screensharing selection issues. Now when there’s a screen share we just use the old VERTICAL_FILMSTRIP_VIEW layout
Add THUMBAIL_TYPE to determine how to display thumbnails