Fix API url

app.py

@@ -24,7 +24,7 @@ if user_input := st.chat_input("What is up?"):
 
     # Send user input to Rasa webhook
     payload = {"sender": "user", "message": user_input}
-    response = requests.post('https://omdenalc-omdena-ng-lagos-chatbot-model.hf.space', json=payload)
+    response = requests.post('https://omdenalc-omdena-ng-lagos-chatbot-model.hf.space/webhooks/rest/webhook', json=payload)
     bot_reply = response.json()
 
     # Display assistant response in chat message container