These changes are the bare minimum required to get footnotes to appear and function on the article page.
* The newsfoot.js script now wraps everything in an IIFE to prevent bleed to other scripts
* Stylesheets are included in the main stylesheet, with the colors extracted out into separate selectors
Currently missing the arrow pointing to the footnote link, and no consideration exists for mobile presentation
beyond a max-width: 100vh on the footnote popover.
