Idea: Add support for the Facebook share dialog to next-share

[gwhizoftv]

If we could get access to the FB.ui options behind the next-share interface, something like this:
window.FB.ui({
method: 'share',
display: 'popup',
href: 'https://www.example.com/',
title: 'My Example Link',
description: 'This is a great example link for sharing!',
picture: 'https://www.example.com/image.jpg',
});