Exported TypeScript types are all wrong

[Steven Petryk]

Parcel seems to be rolling up all exported TypeScript types into the mafs module. So you can write code like this:

import { OfY } from "mafs"

<OfY ... />

And TypeScript doesn't show any errors, but in reality, OfY is undefined at runtime (the correct way to use OfY is to import Plot and then use Plot.OfY).

To fix this, I've confirmed that API extractor does a better job at doing .d.ts rollup, so now I just have to figure out how to disable Parcel's type rollup.