HTMLTrackElement class provided missing two properties as stated in MDN

[oliver139]

Description

As stated in MDN:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLTrackElement

There should also be readyState and track accessible as well.
However, they are not in video.js/dist/types/tracks/html-track-element.d.ts currently

I think that we should either:

1. Add back the properties

OR

2. Avoid using the name HTMLTrackElement

Reduced test case

N/A

Steps to reproduce

Errors

No response

What version of Video.js are you using?

v8.21.0

Video.js plugins used.

No response

What browser(s) including version(s) does this occur with?

What OS(es) and version(s) does this occur with?

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