Minor fix

app.py

@@ -1,6 +1,5 @@
 import os
 import cv2
-import glob
 import math
 import torch
 import numpy as np
@@ -8,6 +7,7 @@ import gradio as gr
 import matplotlib.pyplot as plt
 
 from PIL import Image
+from glob import glob
 from utils.plots import Annotator, colors
 from utils.augmentations import letterbox
 from models.common import DetectMultiBackend