fix(utils): Update private View stopped var

src/utils/ui/leo.py

@@ -56,7 +56,7 @@ class LeoUI(View):
         Currently exposes a hidden attribute of the underlying View.
         May be reimplemented in future.
         """
-        return self._View__stopped
+        return self._BaseView__stopped
 
     def to_components(self) -> List[Dict[str, Any]]:
         """