Implement in-place edition in list & details actions

[Pierstoval]

Current roadmap:

• Create basic setup within the Controller's edit action
• Create specific template for field display
• Create JS script to handle in-place edition
• Handle the fetch part in JS
• Handle the fetch part in the Crud controller
• Make sure validation is used (needs Create InvalidEntityException to replace RuntimeException in EntityUpdater #6927)
• Add support for more complex types
• Convert all form data to multipart, to make sure it works with files
• Make thorough tests for all field types, including nested forms
• Update the docs
• Publish 🚀

[Pierstoval]

@javiereguiluz I'm facing a particularly annoying structural issue.

I will have to display some forms in the index and detail pages.
But some fields, like CollectionField and others, require some Assets to be loaded.
These DTOs are configured using the onlyOnForms() method, which updates loadedOn in the final DTO, for its JS asset.

My initial idea was to update EA's index/detail page to load these assets manually when any field in the list contains an "edit in place" for this action. However, this might sound like a hack, but it would work in the end.

How would you do it?

[BenjaminBeck]

Maybe more something for the long run: Use lazy loading stimulus controller for all js

[Pierstoval]

Maybe more something for the long run: Use lazy loading stimulus controller for all js

This wouldn't necessarily need Stimulus, but this would probably load unneeded JS in possibly all pages, and I want to avoid that, and prefer to load the JS code only when necessary.

[Pierstoval]

So far, this is the current state on a pet project:

(Note: it works the same way on the detail page too)

ea_edit_in_place.mp4