This reverts commit 3676b8dcc9d33155881085ebff6073c372dcd0c9, reversing changes made to 125533b36bd009b23f659a54d486d73d29081b4f.
* BoxSwitch users are migrated to new QML TabBox thumbnails layout * Thumbnail layout is new default (as before was BoxSwitch) * Removed obsoleted settings from TabBox config