- Updated toolbars to auto-refresh ui if it attempts to update targeting
a DOM element which no longer exists.
- Removed MediaNode dom specific click handling which was causing
selection issues, and did not seem to be needed now.
Re-used existing route and moved tinymce help to its own different
route. Added test to cover.
Added new external-content block to support in editor UI.
- Updated toolbar to match existing editor, including dynamic RTL/LTR
controls.
- Updated text node handling to not include spans and extra classes when
not needed. Added & update tests to cover.
Changed from using a decorator to using a helper that watches for image
selections to then display a resize helper.
Also changes resizer to use a ghost and apply changes on end instead of
continuosly during resize.
Also added smarter above/below positioning to respond if toolbar would
be off the bottom of the editor, and added hide/show when they'd go
outside editor scroll bounds.
Added new options that sits on the context, for things needed but not
for the core editor, which are defined out of the editor (drawio URL,
error message text, pageId etc...)
