When block place module is enabled and outside in edit mode is turned on if the user clicks "Place block", the configuration form appears in a modal. If, after placing the block the user clicks the block the same configuration form appears in the off-canvas tray.
When both outside in and block place are enabled use the off-canvas tray for the place block form.
User interface changes
Place blocks form appears in the tray, not a modal.
Data model changes