feat(js): Fix ESM builds

[cephalization]

• Advertise ESM dist files in each package via package.json exports field
• Create stub package.json files with "type": "module" in each esm dist folder, to let node know to use esm imports
• Add tsc-alias tool to build process to update all relative imports in emitted esm dist files to adhere to ESM import specification requirements (add .js to all import extensions)

I tested newly emitted dist/ outputs for openinference-instrumentation-openai in an ESM only node project and we no longer get import related errors as we now correctly import esm code. However, auto-instrumentation itself does not yet work in ESM mode.

Resolves #1144