Page heading links don't work if the heading is inside a details section

[ysims]

Can see on this page https://nubook.nubots.net/system/tools/nupbr
Having headings in <details> sections seems strange anyway.
But the problem is that when clicking on any of the right sidebar links on that page between 'How it Works' and 'Segmentation', it doesn't work unless the details section has already been opened that the heading lives in.
I'd suggest either removing the heading in the sidebar if it's in details, or have it jump to the right section and open the details.

[JosephusPaye]

I think I prefer the approach of not showing headings inside <details> in the sidebar. If the author decides they're just details, it's probably not worth the inclusion. The implementation would be a little tricky though. You'll have to walk the MDX AST at compile time for each heading, to see if it's not a descendant of a <details> tag. That said, it think it's the better option.