Add Promise.withResolvers() Polyfill to Next.js

[isBatak]

Goals

1. Add support for Promise.withResolvers() in Next.js for both the browser and Node.js environments.
2. Ensure compatibility with Next.js's supported browser versions, particularly Safari versions between 12 and 17.4
   • Chrome 64+
   • Edge 79+
   • Firefox 67+
   • Opera 51+
   • Safari 12+
3. Enable Promise.withResolvers() polyfill for Node.js, especially for versions before Node 22.
4. Ensure that Promise.withResolvers() is supported in TypeScript 5.4, which already has built-in support for this method.

Non-Goals

1. Support for older browsers not officially supported by Next.js.

Background

Promise.withResolvers() is a useful method that was added to the JavaScript specification and is expected to be baseline-supported by 2024, as documented in MDN. However, as of now, this feature is only supported in Node.js version 22 and above. Since Next.js supports a range of browsers starting from Chrome 64, Edge 79, Firefox 67, Opera 51, and Safari 12, a polyfill would help ensure compatibility across both browser and server environments. Adding this polyfill can smooth the transition for developers until all supported environments natively support Promise.withResolvers().

Proposal

Add the polyfill for Promise.withResolvers() in both the Next.js polyfill modules:

• next-polyfill-module
• next-polyfill-nomodule
• Replace detached-promise implementation with Node polyfill