[Issue-Resolver] Fix #32791 - CollectionView and CarouselView remain interactive when disabled on Android/iOS

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Description of Change

Setting IsEnabled=false on CollectionView/CarouselView blocks interaction on Windows but not on Android/iOS.

Root cause:

• Android: RecyclerView's OnInterceptTouchEvent doesn't check Enabled property
• iOS: UICollectionView doesn't inherit from UIControl; requires explicit UserInteractionEnabled management

Solution:

Android:

• Added Enabled check in MauiRecyclerView.OnInterceptTouchEvent()
• Added Enabled check in MauiCarouselRecyclerView.OnInterceptTouchEvent()

iOS/MacCatalyst:

• Added UpdateIsEnabled() extension method on UICollectionView to set UserInteractionEnabled
• Mapped IsEnabled property in ItemsViewHandler, CarouselViewHandler, and v2 handlers

Acknowledgment:
This solution adopts the approach from PR dotnet#32794 by @SyedAbdulAzeemSF4852. After independent analysis, determined their implementation is optimal.

Issues Fixed

Fixes dotnet#32791

Original prompt

fix dotnet#32791

Custom agent used: issue-resolver
Specialized agent for investigating and resolving community-reported .NET MAUI issues through hands-on testing and implementation

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