Update Gradio_UI.py

Test if this could make a diverence, I do not why this code does not find agent_types

Gradio_UI.py

@@ -17,6 +17,7 @@ import mimetypes
 import os
 import re
 import shutil
+import smolagents
 from typing import Optional
 
 from smolagents.agent_types import AgentAudio, AgentImage, AgentText, handle_agent_output_types