typings/docs: All typings and documentation fixes

[bsian03]

Adds proper JSDoc/TypeScript typings up to date as of PR

[Khaaz]

Thanks a lot for the PR, I also appreciate the various jsdoc changes, typos and improvement.
For all typings, i'll let you discuss with Null or anyone, and i'll go with it. I really appreciate the huge effort.
You can mark this as draft PR while it's a WIP if you want.

[Khaaz]

Just wondering why it doesn't run CI on the PR though

[bsian03]

You know I completely forgot this wasn't Gitlab, I don't think there's another way of marking WIP/draft without closing and reopening

[Khaaz]

yeah i actually thought you could change it to draft after it was already created but guess it's not possible :')

[Khaaz]

Few things really especially considering the PR size.
Some of my comments needs to be taken care of with particular attention though.

I mostly noticed some inconsistency in Library, and I didn't comment everything there.
Lot of missing @memberof statement, sometimes there are return type, sometimes there are not?

Last thing, regenerate a lockfile if you want, but we need the lockfile to be commited

[Khaaz]

Thanks a lot for this PR.
This is a HUGE work: 201 commits, 10k insertion, 3k removal

I already said that but I am really really thankful for your work and the time you invested in this.

We will continue the work of this PR in a second PR to split index.d.ts in separate files as we discussed.
🙏 🙏 Thanks.