code highlighting

[pngwn]

beepboop.

Look into highlighting inline code too (#543)

Issues to address:

• Code Highlight not as expected #554
• Cannot find prismjs components at runtime on Vercel #548
• Highlight inline code such as \console.log("hello");{:js}\ #543
• Any change to default highlighter breaks SvelteKit #514
• Prism at runtime breaks existing mdsvex code block highlighting #486
• Add line number option to code highlight though config #458
• mdsvex.compile(content, options) adds extra {@html and } wrapper for no reason #392
• Code transformers that replace entities do not play nice with the built in highlighter #304
• Custom highlight function doesn't respect whitespace in code blocks #212
• Code block treatment breaks compatibility with some rehype plugins? #139
• Option to render fence blocks caught by codeParse #52 (maybe unrelated)
• Dependabot alerts vulnerable PrismJS #310
• Prism dependency update #431