added test for to check for duplicate descendants

tests/openadapt/test_windows.py

@@ -0,0 +1,14 @@
+from openadapt.window._windows import get_active_window,get_descendants_info
+def test_check_duplicates():
+    active_window = get_active_window()
+    result = get_descendants_info(active_window)
+    unique_props = []
+    for item in result:
+        if isinstance(item, dict):
+            if item in unique_props:
+                import ipdb; ipdb.set_trace()
+                return False  # Found a duplicate, return False
+            unique_props.append(item)
+        else:
+            return False  # Invalid item, not a dictionary
+    return True  # No duplicates