fix(modeling): use modern typescript imports

[platypii]

This PR updates V3 branch to fix a ton of type errors. Also a bunch of jsdoc cleanup. Typescript uses jsdoc for type hints, so they are related.

Changes include:

• Use explicit file extensions when doing import type ... from './type.d.ts' files
• Change import { Geom2 } to import type { Geom2 }. Why? Because modern typescript requires adding "type" in order to stay compatible with ES modules.
• Always use capital Geom2, Geom3, Poly3, etc when used as a type
• Change Number, Float, Integer to number
• Change String to string
• Remove unnecessary typedefs
• Remove unnecessary namespaces
• Add tsconfig.json file to configure typescript
• Add global.d.ts with basic geometries and maths so that they can be used in jsdoc without importing explicitly

Note: this doesn't fix all the type errors, that's a bigger project. But this helps fix a lot of them. My goal is to have good autocomplete for JSCAD, and having good types really helps with that.

Sorry for the huge PR!

All Submissions:

• [x] Have you followed the guidelines in our Contributing document?
• [x] Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• [x] Does your submission pass tests?

[hrgdavor]

nice work !

[z3dev]

@platypii did you sleep the last few weeks?

i'm not really interested in reviewing 697 files. UGG

is there anything specific that you would like reviewed?

[platypii]

@platypii did you sleep the last few weeks?

i'm not really interested in reviewing 697 files. UGG

is there anything specific that you would like reviewed?

Sorry. I can try to split it up into multiple PRs if you prefer? Basically it's all just syntax changes on the types. Most of if was search-and-replace across all files. I tried to be pretty careful. So, if you want to approve, I'm happy to fix any bugs that come up in the future.