Improve JSX and TSX support

[Archit404Error]

Currently JSX/TSX elements are not chunked, but theoretically the arrow functions and/or key hooks (useState, useEffect) can & should be chunked as well. Also, JSX files don't always have the jsx extension, so maybe just merge the syntax trees since they are in the same grammar anyway

[Archit404Error]

Merged the JSX/TSX metadata with JS/TS, still need to add chunking of JSX elements. Also need to test by actually indexing a react project

Also added support for docstring and class/module level comments.

[Archit404Error]

I believe react JSX elements are now chunked properly due to previous change, moving to testing