chore(typescript): move typings to DefinitelyTyped

[alexkrolick]

See testing-library/react-testing-library#437, #335

Remove the TypeScript typedefs from this repo in favor of having the community maintain them at DefinitelyTyped.

Why

There are no core teammembers with the TS knowledge needed to maintain the types, and they are not well tested or integrated with the codebase.

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See also reduxjs/redux#3500

[nickmccurdy]

It would be best to wait to merge until the types are published in DefinitelyTyped and then increment the major version number.

[afontcu]

Are types gonna be published under "testing-library" namespace? We had this PR opened in Vue Testing Library to provide types locally (which relied on DTL types), so I believe we should follow other libraries' directions and publish types next to them.

[alexkrolick]

Yes, I think the way to do it is to mirror the package name directly in DefinitelyTyped

[kentcdodds]

Ok, so I've added this as a dep. Here's what things look like before any of these changes (with the current 6.0.0):

And here's what it looks like before I added this dependency (with 6.0.1-alpha.0):

And here's what it looks like after I added this dependency (with 6.0.1-alpha.1):

So as far as the consumer is concerned, there's absolutely no change. And if someone wants to have more control over the version of the typings, then they can install @types/testing-library__dom themselves and npm or yarn will de-dupe to whatever version they want.

This is getting a 👍 from me. Let's do it!

[kentcdodds]

🎉 This PR is included in version 6.0.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀