[BUG] MediaElement not supported in a DataTemplate on MacCatalyst in an application using multiple windows

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Did you read the "Reporting a bug" section on Contributing file?

- [X] I have read the "Reporting a bug" section on Contributing file: https://github.com/CommunityToolkit/Maui/blob/main/CONTRIBUTING.md#reporting-a-bug

### Current Behavior

On MacCatalyst, when using a MediaElement in a `DataTemplate` on a page that contains multiple `ItemsViews`, the following exception is thrown:

```
System.NotSupportedException: MediaElement is not currently supported in multi-window applications
at CommunityToolkit.Maui.Core.Views.MauiMediaElement.TryGetCurrentPage(Page) in /Users/minnbran/GitHub/CommunityToolkit.Maui/src/CommunityToolkit.Maui.MediaElement/Views/MauiMediaElement.macios.cs:line 132
at CommunityToolkit.Maui.Core.Views.MauiMediaElement..ctor(AVPlayerViewController playerViewController, MediaElement virtualView) in /Users/minnbran/GitHub/CommunityToolkit.Maui/src/CommunityToolkit.Maui.MediaElement/Views/MauiMediaElement.macios.cs:line 52
at CommunityToolkit.Maui.Core.Handlers.MediaElementHandler.CreatePlatformView() in /Users/minnbran/GitHub/CommunityToolkit.Maui/src/CommunityToolkit.Maui.MediaElement/Handlers/MediaElementHandler.macios.cs:line 27
at Microsoft.Maui.Handlers.ViewHandler`2[[CommunityToolkit.Maui.Views.MediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[CommunityToolkit.Maui.Core.Views.MauiMediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnCreatePlatformView()
at Microsoft.Maui.Handlers.ViewHandler.OnCreatePlatformElement()
at Microsoft.Maui.Handlers.ElementHandler.CreatePlatformElement()
at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view)
at Microsoft.Maui.Handlers.ViewHandler`2[[CommunityToolkit.Maui.Views.MediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[CommunityToolkit.Maui.Core.Views.MauiMediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IView view)
at Microsoft.Maui.Handlers.ViewHandler`2[[CommunityToolkit.Maui.Views.MediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[CommunityToolkit.Maui.Core.Views.MauiMediaElement, CommunityToolkit.Maui.MediaElement, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value)
at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context)
at Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view)
at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.ILayout, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.LayoutView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value)
at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context)
at Microsoft.Maui.Handlers.BorderHandler.UpdateContent(IBorderHandler handler)
at Microsoft.Maui.Handlers.BorderHandler.MapContent(IBorderHandler handler, IBorderView border)
at Microsoft.Maui.PropertyMapper`2.<>c__DisplayClass5_0[[Microsoft.Maui.IBorderView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IBorderHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].b__0(IElementHandler h, IElement v)
at Microsoft.Maui.PropertyMapper.UpdatePropertyCore(String key, IElementHandler viewHandler, IElement virtualView)
at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView)
at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view)
at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IBorderView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IView view)
at Microsoft.Maui.Handlers.BorderHandler.SetVirtualView(IView view)
at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IBorderView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view)
at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler)
at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value)
at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value)
at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context)
at Microsoft.Maui.Platform.ViewExtensions.ToHandler(IView view, IMauiContext context)
at Microsoft.Maui.Controls.Handlers.Items.TemplateHelpers.GetHandler(View view, IMauiContext context)
at Microsoft.Maui.Controls.Handlers.Items.TemplatedCell.Bind(DataTemplate template, Object bindingContext, ItemsView itemsView)
at Microsoft.Maui.Controls.Handlers.Items.ItemsViewController`1[[Microsoft.Maui.Controls.CarouselView, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].UpdateTemplatedCell(TemplatedCell cell, NSIndexPath indexPath)
at Microsoft.Maui.Controls.Handlers.Items.CarouselViewController.GetCell(UICollectionView collectionView, NSIndexPath indexPath)
at UIKit.UIApplication.UIApplicationMain(Int32 argc, String[] argv, IntPtr principalClassName, IntPtr delegateClassName) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:line 61
at UIKit.UIApplication.Main(String[] args, Type principalClass, Type delegateClass) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:line 96
at CommunityToolkit.Maui.Sample.Program.Main(String[] args) in /Users/minnbran/GitHub/CommunityToolkit.Maui/samples/CommunityToolkit.Maui.Sample/Platforms/iOS/Program.cs:line 7
```

This is a known bug where a `NotSupportedException` is thrown:

https://github.com/CommunityToolkit/Maui/blob/ed06645844df6aa05216eaab44b984f65020be09/src/CommunityToolkit.Maui.MediaElement/Views/MauiMediaElement.macios.cs#L132

### Expected Behavior

The MediaElement should work on MacCatalyst when using multiple windows.

### Steps To Reproduce

1. On an iOS device, launch CommunityToolkit.Maui.Sample
2. In CommunityToolkit.Maui.Sample, navigate to Views -> MediaElementMultipleWindowPage
3. Confirm app crashes

### Link to public reproduction project repository

https://github.com/CommunityToolkit/Maui/tree/main/samples

### Environment

```markdown
- .NET MAUI CommunityToolkit MediaElement: v4.1.2
- OS: iOS
- .NET MAUI:
[maui]
Installation Source: SDK 8.0.400
Manifest Version: 8.0.82/8.0.100
Manifest Path: /usr/local/share/dotnet/sdk-manifests/8.0.100/microsoft.net.sdk.maui/8.0.82/WorkloadManifest.json
Install Type: FileBased
```

### Anything else?

This bug does not currently affect .NET 8, but may affect .NET 9 that deprecates `Application.MainPage` in favor of `Application.CreateWindow(IApplicationState)`: https://learn.microsoft.com/en-us/dotnet/maui/whats-new/dotnet-9?view=net-maui-8.0#mainpage

Start with src/CommunityToolkit.Maui.MediaElement/Views/MauiMediaElement.macios.cs at line 132 and inspect the MediaElementMultipleWindowPage sample in samples. Run the sample and reproduce the crash by navigating to Views → MediaElementMultipleWindowPage. Done means MediaElement works on MacCatalyst with multiple windows without the NotSupportedException.

Written by the indexing model from the issue text.