Update cursor without checking for IsPointerOver because that flags gets written after the SetCursor is called (#17726)

Author: Gillibald

src/Windows/Avalonia.Win32/WindowImpl.cs

@@ -773,10 +773,7 @@ public void SetCursor(ICursorImpl? cursor)
             var hCursor = impl?.Handle ?? s_defaultCursor;
             SetClassLong(_hwnd, ClassLongIndex.GCLP_HCURSOR, hCursor);
 
-            if (Owner.IsPointerOver)
-            {
-                UnmanagedMethods.SetCursor(hCursor);
-            }
+            UnmanagedMethods.SetCursor(hCursor);    
         }
 
         public void SetIcon(IWindowIconImpl? icon)