fix bug: app.py

predict single function.

app.py

@@ -27,8 +27,7 @@ model = model.to(device)
 
 def single_sentence(sentence):
     predictions = predict_single(sentence, tokenizer, model, device)
-    predictions.sort(reverse=True)
-    return list(zip(LABEL_COLUMNS, predictions))
+    return sorted(zip(LABEL_COLUMNS, predictions), key=lambda x:x[-1], reverse=True)
 
 def csv_process(csv_file, attr="content"):
     current_time = datetime.now()