Lexical based editor todo

In progress

Alignments: Use existing classes for blocks
Alignments: Handle inline block content (image, video)
Table features
Image paste upload
Keyboard shortcuts support
Draft/change management (connect with page editor component)
Add ID support to all block types
Template drag & drop / insert
Video attachment drop / insert
Task list render/import from existing format
Link popup menu for cross-content reference
Link heading-based ID reference menu
Image gallery integration for insert
Image gallery integration for form
Drawing gallery integration
Support media src conversions (https://github.com/tinymce/tinymce/blob/release/6.6/modules/tinymce/src/plugins/media/main/ts/core/UrlPatterns.ts)

Image resizing currently bugged, maybe change to ghost resizer in decorator instead of updating core node.
Removing link around image via button deletes image, not just link
SELECTION_CHANGE_COMMAND not fired when clicking out of a table cell. Prevents toolbar hiding on table unselect.