fix(ios): missing cancel button when using popover action sheet (running on iPad or with SDK26 on iPhone)

[mlisikbf]

Summary:

Fixes #55074 by reverting to UIAlertActionStyleDefault for iPad action sheet and iOS26 action sheet (meaning app was built with SDK26, is running on iOS26, and without UIDesignRequiresCompatibility enabled).

Changelog:

[IOS] [FIXED] - ActionSheet: prevent cancelButtonIndex from causing buttons to disappear when using popover action sheet

Test Plan:

Used https://github.com/mlisikbf/MobileTest_ActionSheet/tree/test-patch as a starting point. It has the change applied via patch-package, and uses action sheets with/without an anchor, and with/without cancelButtonIndex. Scenarios to test:

built with SDK26, running iOS26

Simulator.Screen.Recording.-.iPad.A16.-.2026-01-07.at.13.58.01.mov

Simulator.Screen.Recording.-.iPhone.17.Pro.-.2026-01-07.at.14.02.45.mov

built with SDK26, running iOS18

Simulator.Screen.Recording.-.iPad.mini.6th.generation.-.2026-01-07.at.14.25.21.mov

Simulator.Screen.Recording.-.iPhone.16.iOS.18.-.2026-01-07.at.14.25.09.mov

built with SDK 18, running iOS26

(cannot install older build tools atm, but this will be the same case as UIDesignRequiresCompatibility below)

built with SDK26, running iOS26 with `UIDesignRequiresCompatibility`

Simulator.Screen.Recording.-.iPad.A16.-.2026-01-07.at.14.51.33.mov

Simulator.Screen.Recording.-.iPhone.17.Pro.-.2026-01-07.at.14.53.47.mov

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[cipolleschi]

Thanks for fixing this issue!

[meta-codesync]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this in D90257007.

[mlisikbf]

For whatever reason, I am unable to reproduce today with the reproducer and a new, fresh project (both on latest RN). Will convert this to draft and continue testing.

[mlisikbf]

Closing as this was actually addressed in 0.83 via 82d2352