iOS soft-keyboard hides Entry in CollectionView and causes weird jumps

### Description

As you can see, opening a keyboard on one of the last `Entry` component causes weird jump effect, and besides that, it totally breaks the UX.

https://github.com/user-attachments/assets/d9eede6e-7b93-44cd-89a1-5794f9955711

### Steps to Reproduce

Here's the UITest ready for the lucky developer working on this.

```
using Microsoft.Maui.Controls.Shapes;

namespace Maui.Controls.Sample.Issues;

[Issue(IssueTracker.Github, 99999, "iOS soft keyboard causes CollectionView to jump", PlatformAffected.iOS)]
public class Issue99999 : ContentPage
{
public Issue99999()
{
var grid = new Grid();
var cv = new CollectionView { ItemsSource = new List
{
"Item 1",
"Item 2",
"Item 3",
"Item 4",
"Item 5",
"Item 6",
"Item 7",
"Item 8",
"Item 9",
"Item 10"
},
ItemTemplate = new SmallBigTemplateSelector()
};
grid.Add(cv);
Content = grid;
Background = Brush.LightSeaGreen;
}

private class SmallBigTemplateSelector : DataTemplateSelector
{
private readonly DataTemplate _smallTemplate = new(() => CreateTemplateContent(3));
private readonly DataTemplate _bigTemplate = new(() => CreateTemplateContent(15));

static object CreateTemplateContent(int inputCount)
{
var border = new Border
{
StrokeShape = new RoundRectangle { CornerRadius = 16 },
Margin = new Thickness(16),
Background = Brush.White
};
var vsl = new VerticalStackLayout
{
Spacing = 16
};
border.Content = vsl;

var label = new Label
{
FontSize = 24,
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center
};

label.SetBinding(Label.TextProperty, ".");
vsl.Add(label);

for (int i = 0; i < inputCount; i++)
{
var entry = new Entry
{
Placeholder = $"Input {i + 1}",
FontSize = 18,
HeightRequest = 40,
BackgroundColor = Colors.LightGoldenrodYellow,
Margin = new Thickness(16, 0)
};
vsl.Add(entry);
}

return border;
}

protected override DataTemplate OnSelectTemplate(object item, BindableObject container)
{
var str = (string)item;
var numericValue = int.Parse(str.Split(' ')[1]);
return numericValue % 2 == 0 ? _smallTemplate : _bigTemplate;
}
}
}
```

### Link to public reproduction project repository

_No response_

### Version with bug

9.0.70 SR7

### Is this a regression from previous behavior?

Not sure, did not test other versions

### Last version that worked well

Unknown/Other

### Affected platforms

iOS

### Affected platform versions

_No response_

### Did you find any workaround?

No workarounds available.

### Relevant log output

```shell

```