onDismiss: If Nothing, the modal will not be dismissable
visibleTitle: If False, the title will still be used for screen readers
content: This will be placed in a width:100% div in the main area of the modal
footerContent: The optional items here will be stacked below the main content area and center-aligned.
Commonly you will either give a list of Nri.Ui.Buttons,
or an empty list.
onDismiss: IfNothing, the modal will not be dismissablevisibleTitle: IfFalse, the title will still be used for screen readerscontent: This will be placed in awidth:100%div in the main area of the modalfooterContent: The optional items here will be stacked below the main content area and center-aligned. Commonly you will either give a list of Nri.Ui.Buttons, or an empty list.