fix: multiple dock icons when calling dock.show/hide

[zcbenz]

Description of Change

Close #24407.

Work around a bug of macOS that, when calling dock.show/hide in very short interval, multiple dock icons would be left in the system.

I don't have a test for this, since it is a visual bug of Finder and the APIs are just lying.

Checklist

• PR description included and stakeholders cc'd
• PR title follows semantic commit guidelines
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.
• This is NOT A BREAKING CHANGE. Breaking changes may not be merged to master until 11-x-y is branched.

Release Notes

Notes: Fix multiple dock icons being left in system when calling dock.show/hide on macOS.

meant to request changes

[codebytere]

@zcbenz

app module dock APIs dock.hide should not throw

looks like a legitimate failure of this PR

[zcbenz]

@codebytere I have adjusted the order of the tests to make it pass, it is not really decent but I can't find a better way.

[release-clerk]

Release Notes Persisted

Fix multiple dock icons being left in system when calling dock.show/hide on macOS.

[trop]

I was unable to backport this PR to "8-x-y" cleanly;
you will need to perform this backport manually.

[trop]

I was unable to backport this PR to "9-x-y" cleanly;
you will need to perform this backport manually.

[trop]

I have automatically backported this PR to "10-x-y", please check out #25299

[trop]

I have automatically backported this PR to "11-x-y", please check out #25300

[trop]

@zcbenz has manually backported this PR to "9-x-y", please check out #25301

[trop]

@zcbenz has manually backported this PR to "8-x-y", please check out #25302