Update app.py

app.py

@@ -1,12 +1,13 @@
+from sentence_transformers import SentenceTransformer
 import streamlit as st
-from PyPDF2 import PdfReader
 import pandas as pd
-from sklearn.feature_extraction.text import TfidfVectorizer
+from PyPDF2 import PdfReader
 from sklearn.metrics.pairwise import cosine_similarity
 from gliner import GLiNER
 import plotly.express as px
 import time
 
+
 with st.sidebar:
     st.button("DEMO APP", type="primary")