Textfield in a form instantiated inside shadow dom

[vsgoulart]

Describe the Bug

When creating a form instance inside a shadow DOM node typing a value in a textfield won't work properly. The value typed simply disappears after some time.
This is due to some differences in the event handling inside shadow dom noes + React events + Preact events.

This bug was reported on this support case

Steps to Reproduce

1. Model a form with a textfield
2. Instantiate the form inside a shadow dom node (repro here)
3. Try to type inside the textfield
4. The value disappears after some time

Expected Behavior

The textfield should work normally

[wollefitz]

@vsgoulart This was highlighted as a major blocker by one of our customers, could you share a timeline of when this can be fixed transitively in Web Modeler?

cc @marcosgvieira

[vsgoulart]

@wollefitz This is only relevant to the view engine when deployed in a specific way so it doesn't apply to the modelers
Also this is quite an exotic way of deploying it, they can always temporarily use a simpler way of instantiating form-js

But anyway, I have the fix here
I just need to investigate some issues on the CI but I'll probably will release this fix tomorrow

[Skaiir]

Closed via #1400