Merge #1058

1058: Update JSDoc comments for each function r=bidoubiwa a=blenderskool

JSDoc comments for all the user-facing functions are updated to include ``@param`` and ``@returns`` tags with appropriate descriptions.
Descriptions for some of these tags were referenced from the [official API documentation](https://docs.meilisearch.com/reference/api/)

I haven't made these updates to the functions not exposed by the library, wasn't sure if it was needed there as well. I don't think I missed any other function, please let me know if I did or made any typos. 🙂 

Fixes #325 

Co-authored-by: Akash Hamirwasia <[email protected]>

Author: bors[bot]