fixed requirements bug

app.py

@@ -14,7 +14,6 @@ from sklearn.decomposition import PCA
 from transformers import AutoTokenizer, AutoModel
 from sentence_transformers import CrossEncoder
 from sentence_transformers import SentenceTransformer
-import matplotlib
 
 class ArxivSearch:
     def __init__(self, dataset, embedding="sbert"):
@@ -216,6 +215,7 @@ class ArxivSearch:
                                     title="Score",
                                     bgcolor='rgba(0,0,0,0)',  # <-- Transparent background for colorbar
                                     bordercolor='rgba(0,0,0,0)' # No border
+
                             )
                         ),
                 name='Results',