WASM package includes a broken "exports" field

[binyamin]

Probably introduced in commit d004c2f.

There's a broken exports field in the WASM package's package.json. It points to a non-existent file. Because of this, esm.sh isn't able to parse the package.

https://github.com/parcel-bundler/parcel-css/blob/a1f4401e829b7ab616a2df305372eca3e5fcb146/package.json#L8-L11

[mischnic]

And for the other platform-specific packages, it also refers to a missing file: https://unpkg.com/browse/@parcel/css-win32-x64-msvc@1.11.0/