Before: All pages have the Home nav menu in static HTML, which is blown away and replaced by the proper nav menu upon hydration. This leads to jankiness when the page first loads and an unpleasant flash of the wrong nav menu (especially obvious on the JavaScript ref page, which takes a long time to process and rerender the nav).
Now: All pages have their correct nav menu in static HTML.
Begin the process of moving our MDX files into their own content directory.
Fixed a few minor bugs re: ToC and tabs not rerendering consistently on page navigation. (The ToC thing wasn't a problem before the refactor, the tabs thing is a problem on prod.)
Moved MDX files can't import their own components, so everything they require needs to be back in the component prop for mdx-remote's serializer. Cleaned this up a bit and lazy-loaded heavy/rare stuff. Also, the component prop doesn't take arbitrary objects (only actual components), so imported data has to be wrapped in a component.
Charis