Introduces custom event for when a component is inserted. Eventually we will deprecate jQuery entirely from this module.

Add API for adding / getting LP Sortable instances from global Drupal scope. Add classes for target and disallowed targets when moving items.

Correctly apply moves and accepts error callbacks. Add classes when element is chosen, before drag starts. Move sortable functionality into a single function. Style item being dragged.

Prevent multiple nested frontend edtiors from being open at the same time. Move tempstore functionality out of formatter and into form for frontend builder.

Issue #3247290: Make it easier for 3rd-party modules to alter the controls attached to builder components

Added custom JS events. Simplified controllers. Simplified component list. Added component list library. Added builder form library.