Fields inside 'required' repeating groups look required

[SilviaAmAm]

Here I have a required repeating group, with a non-required textfield inside.

It looks like the textfield is required (because the label is bold)

[sergei-maertens]

Ticket is a reminder that this should be taken into account for the new form builder - it's not currently a bug because the preview of the entire form is still done using formio's own builder (at the time of writing this repository only controls the edit form modal with single-field preview)