feat: support dynamically loading language

[KazariEX]

resolve #31

[KazariEX]

@pi0 Hi, do you have time to look at this repo?

[jswhisperer]

Hi @KazariEX I'm looking for a solution like this also, I was trying to use the CDN instead, but it won't build.

I was wondering with your PR would it still bundle the whole library in the build... it is too big for CloudFlare Workers with all langs.

[KazariEX]

You can use await import("https://esm.sh/shiki/langs") to avoid full bundling.

[jswhisperer]

Ahh yeah that works, I was doing that I think I'm having an unrelated bug,
nuxt.hub cloudflare mode tries to bundle remote urls and fails weirdly
but thats a diff issue