Stop supporting CommonJS builds

[nazarhussain]

Is your feature request related to a problem? Please describe.

With growing support of ESM in all tooling now maintaining CJS builds seems not necessary anymore.

Describe the solution you'd like

We can simply remove the support for CJS builds and it will cleanup the lib/cjs directory.

• Need to remove package.json scripts
• Bump the version to breaking change
• Update the main fields for the package.json

Additional context

Dropping CommonJS (CJS) support in favor of ECMAScript Modules (ESM) offers several advantages:

1. Modern Standard: ESM is the official JavaScript module standard, ensuring better future compatibility and native support in Node.js and browsers.
2. Improved Performance: ESM allows for static analysis, tree-shaking, and better optimization during bundling, resulting in smaller and faster builds.
3. Simplified Codebase: Maintaining only ESM reduces build complexity, configuration overhead, and maintenance effort.
4. Better Interoperability: ESM integrates smoothly with modern tooling, packages, and web platforms, improving developer experience and ecosystem alignment.
5. Future-Proofing: The JavaScript ecosystem is moving toward ESM, and deprecating CJS ensures alignment with evolving best practices.