Add Dialog.Close or export useDialogContext

[cgorrieri]

Hello,

I want to create a generic Title component that already include a close X button on the top right of my Dialog/Modal.

I used the Dialog.Overlay component to be rendered as the button. So it closes the modal when the user clicks on it but it doesn't feel right and is not straightforward.

Maybe it would be better to have a Dialog.Close component that already is rendered as a button by default and on click closes the modal. Or export the useModalContext so we could create the close component.