* [x] Use https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog * [x] Update JavaScript to use `<dialog open>` instead of `<div id="lightbox" class="open">` * [ ] Prevent background scrolling - see https://getbootstrap.com/docs/4.3/components/modal/ and https://usefulangle.com/post/279/hide-page-scrollbar-when-fixed-modal-opened * [ ] Prevent layout shifts when hiding the scrollbar (adjust padding [as seen here](https://github.com/twbs/bootstrap/blob/aa9d32dd153ed16943ad8be5e8795afaad24d0cf/dist/js/bootstrap.js#L2441))
<dialog open>instead of<div id="lightbox" class="open">