- Stop using draft WAI-ARIA 1.3 that isn't supported yet
- Make in-page links focusable across shortcodes/partials
- Replace existing in-page heading anchor links with a more accessible
option.
- Make backlinks aria-labelledby instead of giving them an aria-label,
so they can be translated.
They're not interactive elements and there's no hint that they should be
hovered on. Wrapping them in an <abbr> would just make the markup even
more overcomplicated, so I just dropped the titles.
Split up some verbose and repetitive templates to use nested templates.
Cache some templates that don't need to be re-built every time.
Reading time: switch "a" to "an" when followed by the number "8".
Improve whitespace alignment a bit.
