Fix OpenSwiftUI View Renderer requirement impl

[Kyle-Ye]

Agent Summary

This fixes two Toggle-related rendering issues in the OpenSwiftUI UIKit-backed path.

The switch now respects the transaction animation setting when updating UISwitch.isOn, so animated transactions animate the control update and disabled-animation transactions update immediately.

This also updates display-list content requirement merging for platform content. Platform-backed content now contributes an item view without forcing an inherited view boundary, matching the expected view hierarchy and avoiding misplaced platform controls.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 26.95%. Comparing base (20e7dc3) to head (51b73aa).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #875      +/-   ##
==========================================
- Coverage   26.97%   26.95%   -0.03%     
==========================================
  Files         678      678              
  Lines       47149    47146       -3     
==========================================
- Hits        12720    12706      -14     
- Misses      34429    34440      +11     

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[augmentcode]

🤖 Augment PR Summary

Summary: Fixes UIKit Toggle rendering so UISwitch state changes animate only when animations are enabled, and adjusts display-list requirement merging so platform-backed content contributes an item view without forcing an inherited view boundary.
Why: Aligns animation behavior and view hierarchy with expected SwiftUI semantics, preventing misplaced platform controls in the UIKit-backed path.

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[augmentcode]

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