[WIP] ckeditor

added ckeditor and new husky libs, added global var to index.html.twig

- [ ] finish the code
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation


| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Tests pass?   | no
| Fixed tickets | none
| Doc           | none