feat(ext/url): two-argument delete() and has()

[lino-levan]

Closes #19000. Not sure if it was a good idea to update the WPT in this PR but /shrug. I could always remove it.

[aapoalas]

Updated WPT brought with it test failures.

[lino-levan]

@aapoalas should I revert WPT test changes? The actual changes pass the two new tests added to url. Not sure what the best move is here.

[aapoalas]

I'm not quite sure either. Do you know / understand from the output and changes if the now-failing tests are new ones, or old ones that have now started to fail?

If these are new tests, then I would just add expectations of failure for those. If they are old tests that have started failing, then... Well, then I guess the correct choice would be to create issues for each failing test (file).

Any new feature, like this, should have tests so in that sense updating the WPT no matter the tests makes sense to me.

[crowlKats]

Please update WPT in a separate PR

[lino-levan]

Will do.

[lino-levan]

Waiting on #19061 to be resolved since it's looking like there may be a lot of conflicts otherwise.