NXP-12879: use 'listing_thumbnail' in
'document_virtual_navigation_listing_ajax_icon_2_columns' layout
NXP-12883 Don't try to handle concurrency calls in the Automation context
NXP-12531: add chain select widget types handling two levels (taken from Studio contribs)
NXP-12795: cleanup
NXP-12795: include theme to provide needed js resources
NXP-12795: put collectedData in context and correct chainOrOperationId param
NXP-12892: remove onclick widget property and integrate permalink select in template
NXP-12827: add return statements
NXP-12871: fix wrong help label on toggleable layout widget type props