fix: Fix target path computation: use qualified names to maintain cla…

…sses in the path

Issue-296: #296

src/griffe/agents/nodes/_runtime.py

@@ -269,7 +269,7 @@ def alias_target_path(self) -> str | None:
             child_module_path = child_module_path.lstrip("_")
         if self.is_module:
             return child_module_path
-        child_name = getattr(self.obj, "__name__", self.name)
+        child_name = getattr(self.obj, "__qualname__", self.path[len(self.module.path) + 1 :])
         return f"{child_module_path}.{child_name}"