fix: exports field detection

[sibbng]

Based on: webpack/enhanced-resolve#313 (comment)

Should we include "node", "browser", "default"?

This change works with rollup but not esbuild. On Windows it doesn't work at all.

[sibbng]

After this changes export-size cli works but vueuse's export size script failing with different error.

> @vueuse/monorepo@6.7.3 size C:\Users\sib\fork\vueuse
>  esno scripts/export-size.ts

(node:19172) UnhandledPromiseRejectionWarning: Error: Can't resolve '@vueuse/shared' in 'C:\Users\sib\fork\vueuse\packages\core\dist'
    at finishWithoutResolve (C:\Users\sib\dev\sli\export-size\node_modules\.pnpm\enhanced-resolve@5.8.3\node_modules\enhanced-resolve\lib\Resolver.js:293:18)

[sibbng]

I got it working after making some updates on vueuse's scripts. But it required me to remove these three lines from this package. Because they were wrongly modifying the path. I didn't see any side effects during build. @antfu I hope you can tell me what this lines do 👀

My changes on vueuse: sibbng/vueuse@6ff7149

[sibbng]

Esbuild works fine on my Windows machine but on Gitpod it throws RangeError: Maximum call stack size exceeded.