[Testing] Enable CarouselViewVirtualViewNotNull test on all platforms and fix related CarouselView issues

[jsuarezruiz]

Description

Enable CarouselViewVirtualViewNotNull test on all platforms and fix related CarouselView issues #22207

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

Nightly / CI build (Please specify exact version)

Is this a regression from previous behavior?

No, this is something new

Last version that worked well

Unknown/Other

Affected platforms

iOS, Windows, macOS

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

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• [testing] Reenable TopTabsDontScrollBackToStartWhenSelected (#20892), similarity score: 0.71
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[rmarinho]

Fixed for iOS and Mac on #24471

Tests don t work on Mac because app.back is not implemented.