Detect packages with TypeScript but without a `types` field in package.json

[Sindre Sorhus]

Would be nice if the search would correctly detect a package as TypeScript in the case where a package has a index.d.ts file in root, but not a types field in package.json. That's a common occurrence and it's allowed by TypeScript to omit the types field if the definition file uses the name index.d.ts.

Context: #407 (comment)

[Haroen Viaene]

Do you have an example package that doesn’t get detected yet? That’ll make implementing this easier :)

[Sindre Sorhus]

It was https://github.com/sindresorhus/type-fest, but now we've added a types field to work around it: sindresorhus/type-fest@1fe98c2

[Haroen Viaene]

I think the code might have been assuming a main field, which is why it doesn't work yet