Fix integration with Layout Builder

Problem/Motivation

Integration with Layout Builder is lacking.
For example you have a node setup with Layout Builder. These fields aren't saveable with Jeditable due to the code is not "open" to LAyout Builder.

Steps to reproduce

Have Layout Builder enabled on a content type and setup the "default" view mode for example with LAyout Builder.
Then try to edit a node on the "node/view" page.
Saving isn't working.

Remaining tasks

Review merge request.