DX-1264: Unify exports

[ytkimirti]

This PR introduces some small tweaks to unify some parts of our javascript packages. Here are the changes:

• Fix some eslint warnings
• Used "latest" version in examples for this package
• Updated tsup config

Note from this discussion: We disable codesplitting for CJS because it is currently experimental in tsup. This resulted in an increased bundle size for CJS.

• Updated exports field in package.json

NOTE: This should not bring any breaking changes with the old version. Here is the old and new output coming from the attw cli:

NOTE: /dist/nextjs import is there just for backwards compatibility.

[linear]

DX-1264 Unify js packet configs and publishing workflows

[fahreddinozcan]

We should make sure this doesn't break anything

[ytkimirti]

I don't think we use any nodejs imports, we probably don't need this