Better types

[jakajancar]

I'm having to litter my code with # pyright: ignore[reportUnknownMemberType] on pretty much every call to Chancy. It would be nice if types were defined better. For example:

• get_schedules returns dict[str, dict] (untyped inner dict)
• schedule takes *jobs: Job | IsAJob[..., Unknown] (the IsAJob protocol uses ... for the ParamSpec)
• with_kwargs takes **kwargs without type annotation
• job() decorator takes **options without type annotation

[TkTech]

The job typing was removed to fix a bug with PyCharm's typing with decorators, but it may be worth revising to see if it's no longer an issue. It would break the typing of the wrapped function.