docs: add documentation for FluentEditForm

[MarvinKlein1508]

🙋 Documentation Request

I would like to see documentation for the FluentEditForm component. When should you use this component and what's the difference between a normal EditForm ? So far everything is working fine in my app using a regular EditForm but this component must have a use-case, right?

[vnbaaij]

Yes, we had a reason for it. Just not sure what it was anymore. Will dig into its history.

[vnbaaij]

Closed with PR mentioned