fix: use domhandler exports field

[vattenapa]

Same as remarkablemark/html-react-parser#565

[remarkablemark]

Thanks for opening this PR @vattenapa!

Do you mind updating the karma.conf.js:

• https://github.com/remarkablemark/html-dom-parser/blob/0cf76d3/karma.conf.js#L18
• https://github.com/remarkablemark/html-dom-parser/blob/0cf76d3/karma.conf.js#L37

npm run test:client

And updating .size-limit.json since this change increases the bundle size?

npm run size-limit

[vattenapa]

Wait a sec, I was using resolutions in package.json to fix domhandler to ^5. The exports for domhandler:4.3.1 don't have this issue.

I'll close this PR since this package isn't compatible with domhandler 5, sorry about that.

[remarkablemark]

No worries! @vattenapa