Suggest ESM support

[AlbertAZ1992]

domhandler has supported ESM since v5 fb55/domhandler@5582477

But html-dom-parser still imports commonjs format of domhandler with the latest version(v5.0.3) https://github.com/remarkablemark/html-dom-parser/blob/master/package.json#L45.

That will cause some TypeErrors when you try to build a package with html-dom-parser to ESM, as domhandler import as esm, the uses like require('domhandler').Text get undefined: https://github.com/remarkablemark/html-dom-parser/blob/master/lib/client/utilities.js#L9

So i think html-dom-parser should support ESM build

[remarkablemark]

Thanks for opening this issue @AlbertAZ1992! Would you be interested in opening a PR?

[AlbertAZ1992]

Thanks for opening this issue @AlbertAZ1992! Would you be interested in opening a PR?

Yes. But since we cannot use ESM in CommonJS, i think that rewrite the lib/client with ESM and build to CommonJS is the only way.

[remarkablemark]

Can't we follow the same approach as html-react-parser? Only a single index.mjs was created and the require in the other files were untouched