Rework how error tracking is done

[MangelMaxime]

Currently Fable form is using the label of the field to keep track of their errors.

But I am not sure if this is the correct ways of doing it, I feel like we should explicitly ask the user for a unique ID and then have it provide the label of the field.

For example, this cause problem is you change how the checkbox is defined to accept either a string or a ReactElement for its "label"

type Attributres =
	| Text of string
	| ReactElement of ReactElement

Then in the case of ReactElement we don't have the needed information to store the key of the field error. We need to change it to ReactElement of string * ReactElement.

This could be seen as a specific but I think it just shows that we have a wrong design in the current way we consider the forms.