delete avatar image.

app.py

@@ -685,7 +685,7 @@ with gr.Blocks(theme=gr.themes.Soft(), css="footer {display: none !important}")
 
     with gr.Row():
         with gr.Column(scale=1):
-            chatbot = gr.Chatbot(label="Analysis Chat Log", height=700, show_copy_button=True, avatar_images=(None, "https://pharma-circle.com/images/favicon.png"))
+            chatbot = gr.Chatbot(label="Analysis Chat Log", height=700, show_copy_button=True)
             msg_textbox = gr.Textbox(placeholder="Ask a question, e.g., 'Show me the top 5 companies by total deal value in 2023'", label="Your Question", interactive=True)
             with gr.Row():
                 clear_button = gr.Button("🔄 Start New Analysis", variant="primary")