☂️ compat: tracking issue for next.js support

[kt3k]

part of https://github.com/denoland/deno/issues/12577. This issue tracks the remaining issues for running next.js in deno

• [ ] styled-jsx detect browser env by typeof window !== 'undefined' (deno compat mode becomes isBrowser: true), then crashes after referencing document
• [ ] fs.watchFs throws uncaught error on trying to watch next.config.mjs
• [ ] swc binary downloader fails with error - Failed to load SWC binary for darwin/x64, see more info here: https://nextjs.org/docs/messages/failed-loading-swc