[iOS] Switching SafeAreaEdges from None to All/SoftInput while keyboard is open does not move bottom content above keyboard

### Description

When the safe area is set to None and the keyboard is opened, the safe area changes to All or SoftInput, and the bottom label does not move above the keyboard.

https://github.com/user-attachments/assets/e09a3d66-da3a-4d83-8f46-581dfb121406

### Steps to Reproduce

1. Run the Issue28986_ContentPage test in the host app.
2. Do as mentioned in the video.

### Link to public reproduction project repository

https://github.com/dotnet/maui/blob/main/src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue28986_ContentPage.cs

### Version with bug

10.0.51

### Is this a regression from previous behavior?

No, this is something new

### Last version that worked well

Unknown/Other

### Affected platforms

iOS

### Affected platform versions

_No response_

### Did you find any workaround?

_No response_

### Relevant log output

```shell

```

Start by running the Issue28986_ContentPage test in the host app and follow the reproduction steps while the keyboard is open. Use src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue28986_ContentPage.cs as the entry point. Done means that changing SafeAreaEdges from None to All or SoftInput moves the bottom label above the keyboard on iOS.

Written by the indexing model from the issue text.