Add additional syntax highlighters

[mathis-m]

Using this reference to implement different languages on the snippets #7181 (comment)

I can get other languages like Python... However, I don't get any syntax highlighting. Is there a way to allow this? I'm putting together a PR to include options for FastAPI

This is where all of the languages are added https://github.com/swagger-api/swagger-ui/blob/cc408812fc927e265da158bf68239530740ab4cc/src/core/syntax-highlighting.js

Originally posted by @ghandic in #7551