Merge XMLHttpRequestResponseType ↠ XMLHttpRequest.responseType

[teoli2003]

This fixes #5584.

XMLHttpRequestResponseType is an enum only used in XMLHttpRequest.responseType. From a developer perspective it is a JS String with a fixed state of values.

This, it is better to describe the values directly in XMLHttpRequest.responseType, and to completely hide XMLHttpRequestResponseType from the developer (like mixins, it is an implementation detail).

This PR does this.

[github-actions]

Preview URLs

• https://pr5664.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/XMLHttpRequest/responseType
• https://pr5664.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/XMLHttpRequest/response

Flaws

Note! 1 document with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/XMLHttpRequest/response
Title: XMLHttpRequest.response
on GitHub
Flaw count: 1

• macros:
  • wrong xref macro used (consider changing which macro you use)

External URLs

URL: /en-US/docs/Web/API/XMLHttpRequest/responseType
Title: XMLHttpRequest.responseType
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/XMLHttpRequest/response
Title: XMLHttpRequest.response
on GitHub

• https://xhr.spec.whatwg.org/ (1 time)