update scripts

app.py

@@ -65,6 +65,8 @@ def filter_queries(query: str, df: pd.DataFrame) -> pd.DataFrame:
                     final_df.append(temp_filtered_df)
         if len(final_df) > 0:
             filtered_df = pd.concat(final_df)
+    else:
+        filtered_df = df
 
     return filtered_df