Merge pull request #86 from syncfusion/ShimmerIssue

938933-Shimmer effect does not display when added inside the PullToRefresh.

Author: PaulAndersonS

maui/src/PullToRefresh/SfPullToRefresh.cs

@@ -1861,7 +1861,7 @@ protected override void OnHandlerChanged()
 		/// <exclude/>
 		protected override Size MeasureContent(double widthConstraint, double heightConstraint)
 		{
-			if ((!IsPulling && !ActualIsRefreshing) || _previousMeasuredSize != new Size(widthConstraint, heightConstraint))
+			if (!IsPulling || _previousMeasuredSize != new Size(widthConstraint, heightConstraint))
 			{
 				if (PullableContent is not null)
 				{
@@ -1883,7 +1883,7 @@ protected override Size MeasureContent(double widthConstraint, double heightCons
 		/// <exclude/>
 		protected override Size ArrangeContent(Rect bounds)
 		{
-			if ((!IsPulling && !ActualIsRefreshing) || !bounds.Equals(_previousBounds))
+			if (!IsPulling || !bounds.Equals(_previousBounds))
 			{
 				ManualArrangeContent(false, bounds);
 				_previousBounds = bounds;