Fix ESM type import in Webpack loader

[remcohaszing]

Initial checklist

• [x] I read the support docs
• [x] I read the contributing guide
• [x] I agree to follow the code of conduct
• [x] I searched issues and couldn’t find anything (or linked relevant results below)
• [x] If applicable, I’ve added docs and tests

Description of changes

TypeScript 5.3 introduced support for import attributes and resolution-mode. This can be used to import types from ESM files into CJS files without a @ts-ignore comment.

The @ts-ignore comment is stripped from generated type definitions, which leads to a type error for consumers. The module resolution mode is not, which fixes it for users using TypeScript 5.3 or greater.

[vercel[bot]]

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Name	Status	Preview	Updated (UTC)
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[wooorm]

Thanks!