refactor: jsdoc and docs for RouteOptions

[KirillTregubov]

This is a draft based on this conversation.

Currently only implements jsdocs for RouteOptionsType, which is used in the createRoute function.

Any feedback / review is highly appreciated! Feel free to leave some anytime.

[schiller-manuel]

ideally we can eventually generate the docs from the code.
@crutchcorn which format should we adhere to in the code to make this work?

[KirillTregubov]

ideally we can eventually generate the docs from the code. @crutchcorn which format should we adhere to in the code to make this work?

I tried to keep all the jsdocs as similar to the current docs website content as possible. I may have shortened some of them because they had multiple paragraphs of description, but if this is the route you want to take, I can amend those few instances to include everything.

It would be ideal if you can settle on a format that works best. We can test it with RouteOptions, and then I will implement it for the other APIs.