QuestionnaireForm.Navigation.SubmitButton

The submit button is a React Native Paper Button with mode="contained". In paged mode it is hidden until the final enabled item. In all-items mode it is available without paging. It owns onPress, disables during submission, and displays Paper's loading state while the submission is in flight.

Pass children to replace the localized common.submit label. The form performs required-field validation before invoking the chosen submission mode.