[iOS] SafeArea arrange insets are currently insetting based on an incorrect Bounds

[PureWeen]

Description

The problem we found is that the MauiView returns a size from SizeThatFits that doesn't include the SafeAreaInsets. The arrange pass insets its Bounds and passes this value to CrossPlatformArrange but the Bounds being used is the size of the children not including the SafeAreaInsets which means the bounds used for arranging is wrong.

You can see from the screenshots below that the VSL surrounding the the entry gets arranged incorrectly

Comparison

Given the following XAML

<ContentPage
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    x:Class="Maui.Controls.Sample.MainPage"
    xmlns:local="clr-namespace:Maui.Controls.Sample"
    xmlns:ios="clr-namespace:Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific;assembly=Microsoft.Maui.Controls"
    ios:Page.UseSafeArea="false"
    >
    <VerticalStackLayout x:Name="layout" Background="Purple" IgnoreSafeArea="False" VerticalOptions="Start" IsClippedToBounds="True" >
        <Entry x:Name="label" Background="Green" Text="Hello there"></Entry>
    </VerticalStackLayout>
</ContentPage>

Before

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• [MacOS] Entry Causing UIView to apply SafeAreaInsets during focus (#22960), similarity score: 0.74

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• Arrange on Layouts not respecting correctly the passed bounding Rect (#7535), similarity score: 0.70

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