Update app.py

app.py

@@ -4,6 +4,7 @@ subprocess.run(
     env={'FLASH_ATTENTION_SKIP_CUDA_BUILD': "TRUE"},
     shell=True
 )
+subprocess.run(["pip", "install", "-i", "https://pypi.org/simple/", "bitsandbytes"], check=True)
 from threading import Thread
 import torch
 from PIL import Image