Update app.py

app.py

@@ -30,9 +30,9 @@ messages = [
 ]
 
 def handle_query(query: str, mode: str):
-    if mode == "chat":
+    if mode == "Chat":
         return chat_mode(query)
-    elif mode == "web-search":
+    elif mode == "Web-Search":
         return web_search(query)
     else:
         return "Invalid mode selected."