fix: transparent window max/unmax event firing

[codebytere]

Description of Change

Closes #32633.

This PR fixes an issue with transparent windows failing to fire the maximize and unmaximize events on Windows.

We've made a few fixes to transparent window size events on Windows of late, including #28207 and #26586. As of now, we set transparent window to maximized by calling SetBounds, which means that NativeWindowViews::HandleSizeEvent is not triggered with SIZE_MAXIMIZED as it should be. This also presents an issue with unmaximization for similar reasons, and caused the maximize and unmaximize events not to fire on Windows. We can fix this issue by calling NotifyWindowMaximize() and NotifyWindowUnmaximize() in the transparency-specific logic blocks of Maximize() and Unmaximize().

cc @dsanders11

Checklist

• PR description included and stakeholders cc'd
• npm test passes
• tests are changed or added
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: Fixed an issue with transparent windows failing to fire the maximize and unmaximize events on Windows.

[dsanders11]

Thanks for jumping on fixing this. 😄

Couple small things:

• I think the "Notes" for this PR got garbled
• Can you update the "can check transparent window maximization" test to use the max/unmax events instead of 'resize'? My understanding is that was a workaround to these events not firing on Windows, so now that they do, that workaround can be removed.
• Do the added tests need to be restricted to Windows? These events should fire for transparent windows across all platforms, right? I think the tests should run on all platforms to prevent any potential regressions.

[dsanders11]

The Linux CI build is having issues, but I've checked out and built this branch on Ubuntu 20.04 and confirmed the new tests work there (with the changes from #32575 to re-enable event tests), after one small change I've suggested above.

[release-clerk]

Release Notes Persisted

Fixed an issue with transparent windows failing to fire the maximize and unmaximize events on Windows.

[trop]

I have automatically backported this PR to "15-x-y", please check out #32688

[trop]

I have automatically backported this PR to "16-x-y", please check out #32689

[trop]

I have automatically backported this PR to "17-x-y", please check out #32690