Border.Shadow hide the collectionView Header/footer -UITest

src/Controls/tests/TestCases.HostApp/Issues/Issue19338.xaml

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+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="Maui.Controls.Sample.Issues.Issue19338">
+    <StackLayout>
+        <CollectionView
+            x:Name="CV"
+            HeightRequest="300"
+            Margin="0,50,0,0">
+            <CollectionView.Header>
+                <Border BackgroundColor="Red">
+                    <Label
+                        FontSize="16"
+                        AutomationId="HeaderLabel"
+                        HorizontalTextAlignment="Center"
+                        Text="(Header) This is a border with shadows">
+                    </Label>
+                    <Border.Shadow>
+                        <Shadow
+                            Brush="Green"
+                            Radius="4"
+                            Offset="0,4"/>
+                    </Border.Shadow>
+                </Border>
+            </CollectionView.Header>
+            <CollectionView.Footer>
+                <Label
+                    FontSize="16"
+                    HorizontalTextAlignment="Center"
+                    Text="(Footer) This is a label with shadows">
+                    <Label.Shadow>
+                        <Shadow
+                            Brush="Green"
+                            Radius="4"
+                            Offset="0,4"/>
+                    </Label.Shadow>
+                </Label>
+            </CollectionView.Footer>
+        </CollectionView>
+    </StackLayout>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/Issues/Issue19338.xaml.cs

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+namespace Maui.Controls.Sample.Issues;
+
+[XamlCompilation(XamlCompilationOptions.Compile)]
+[Issue(IssueTracker.Github, 19338, "Border.Shadow hide the collectionView Header", PlatformAffected.iOS)]
+public partial class Issue19338 : ContentPage
+{
+	public Issue19338()
+	{
+		InitializeComponent();
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue19338.cs

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+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues
+{
+	public class Issue19338 : _IssuesUITest
+	{
+		public Issue19338(TestDevice testDevice) : base(testDevice)
+		{
+		}
+
+		public override string Issue => "Border.Shadow hide the collectionView Header";
+
+		[Test]
+		[Category(UITestCategories.CollectionView)]
+		public void HeaderAndFooterShouldBeVisible()
+		{
+			App.WaitForElement("HeaderLabel");
+			VerifyScreenshot();
+		}
+	}
+}