Update app.py

app.py

@@ -9,8 +9,7 @@ import shutil
 import requests
 import numpy as np
 import pandas as pd
-from chromadb.config import Settings
-from chromadb.utils import embedding_functions
+from threading import Thread
 from FlagEmbedding import BGEM3FlagModel
 from sklearn.metrics.pairwise import cosine_similarity