Update app.py

app.py

@@ -282,7 +282,7 @@ def main():
     # ⚙️ q= Run ArXiv search from query parameters
     try:
         query_params = st.query_params
-        query = (query_params.get('q') or query_params.get('query') or [''])[0]
+        query = query_params.get('q') or query_params.get('query') or ''
         if query:
             # 🕵️‍♂️ We have a query! Let's process it!
             process_text(query)