TOC generation is now dynamic and reads from the generated article.
It even generates a nested TOC
This means TOC works for AI articles, even without needing to insert headings.
Also removed some footprints. ie colors etc. Instead its class name is TOC, so you have to style it with your site theme.
The links to each heading is now using slug instead of toc#nnn.
Less footprints using this dynamic version.
