Bug fixes

Added dependency of "jquery_ui_droppable/droppable" in info.yml file

The following changes are in this release:

• Make sure, twig renderer returns string
• Prevent error if drag&drop starts with active edit mode
• Fix typo in catch clause to prevent js error
• Disable css reset in recursive rendering
• Disable toolbar margins to make editor align with window

To allow upgrade from beta1 -> beta3, reduce the dependencies in the class and the service.

D9