[iOS] Fix CarouselView proper bounce-back behavior when Loop=false (#29318)

* Fixed the bounce back issue on carousal view 2

* Added test case

* Removed unwanted lines

Author: Shalini-Ashokan

src/Controls/src/Core/Handlers/Items2/iOS/LoopObservableItemsSource2.cs

@@ -59,7 +59,7 @@ public int LoopCount
 			get
 			{
 				var newCount = ItemCount;
-				if (newCount > 0)
+				if (Loop && newCount > 0)
 				{
 					newCount = ItemCount + 2;
 				}

src/Controls/tests/TestCases.HostApp/Issues/Issue29261.cs

@@ -0,0 +1,59 @@
+using System.Collections.ObjectModel;
+
+namespace Maui.Controls.Sample.Issues;
+[Issue(IssueTracker.Github, 29261, "CarouselViewHandler2 for iOS does not properly bounce back when reaching the end with Loop=false", PlatformAffected.iOS)]
+public class Issue29261 : ContentPage
+{
+	public Issue29261()
+	{
+		var verticalStackLayout = new VerticalStackLayout();
+		var carouselItems = new ObservableCollection<string>
+		{
+			"First Item",
+			"Middle Item",
+			"Last Item",
+		};
+
+		CarouselView2 carousel = new CarouselView2
+		{
+			ItemsSource = carouselItems,
+			AutomationId = "carouselview",
+			HeightRequest = 200,
+			Loop = false,
+			ItemTemplate = new DataTemplate(() =>
+			{
+				var grid = new Grid
+				{
+					Padding = 10
+				};
+
+				var label = new Label
+				{
+					VerticalOptions = LayoutOptions.Center,
+					HorizontalOptions = LayoutOptions.Center,
+					FontSize = 18,
+				};
+				label.SetBinding(Label.TextProperty, ".");
+				grid.Children.Add(label);
+				return grid;
+			}),
+			HorizontalOptions = LayoutOptions.Fill,
+		};
+
+		var label = new Label
+		{
+			Text = $"CarouselView Position - {carousel.Position}",
+			AutomationId = "positionLabel",
+			HorizontalOptions = LayoutOptions.Center,
+		};
+
+		carousel.PositionChanged += (s, e) =>
+		{
+			label.Text = $"CarouselView Position - {carousel.Position}";
+		};
+
+		verticalStackLayout.Children.Add(carousel);
+		verticalStackLayout.Children.Add(label);
+		Content = verticalStackLayout;
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue29261.cs

@@ -0,0 +1,28 @@
+#if TEST_FAILS_ON_CATALYST
+// On Catalyst, Swipe actions not supported in Appium.
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+public class Issue29261 : _IssuesUITest
+{
+    public override string Issue => "CarouselViewHandler2 for iOS does not properly bounce back when reaching the end with Loop=false";
+
+    public Issue29261(TestDevice device)
+    : base(device)
+    { }
+
+    [Test]
+    [Category(UITestCategories.CarouselView)]
+    public void VerifyCarouselViewBounceTest()
+    {
+        App.WaitForElement("carouselview");
+        App.SwipeRightToLeft("carouselview");
+        App.SwipeRightToLeft("carouselview");
+        App.SwipeRightToLeft("carouselview");
+        var text = App.FindElement("positionLabel").GetText();
+        Assert.That(text, Is.EqualTo("CarouselView Position - 2"));
+    }
+}
+#endif