Fix preview highlight circle toggle to respect DisplayHighlight

The preview overlay was showing the mouse highlight circle whenever the
pointer overlay was enabled, ignoring the DisplayHighlight setting.
Aligns config preview behavior with main by toggling based on DisplayHighlight.

Author: cursoragent

src/Captura/Pages/OverlayConfigPage.xaml.cs

@@ -305,9 +305,6 @@ bool IsOutsideGrid(Point Point)
 
         void UIElement_OnMouseMove(object Sender, MouseEventArgs E)
         {
-            if (ServiceProvider.Get<Settings>().MousePointerOverlay.Display)
-                MousePointer.Visibility = Visibility.Visible;
-
             var position = E.GetPosition(Grid);
 
             if (IsOutsideGrid(position))
@@ -316,6 +313,12 @@ void UIElement_OnMouseMove(object Sender, MouseEventArgs E)
                 return;
             }
 
+            // Show/hide circle based on DisplayHighlight setting
+            if (ServiceProvider.Get<Settings>().MousePointerOverlay.DisplayHighlight)
+                MousePointer.Visibility = Visibility.Visible;
+            else
+                MousePointer.Visibility = Visibility.Collapsed;
+
             if (_dragging)
                 UpdateMouseClickPosition(position);