Fix round typing bug

app.py

@@ -88,7 +88,7 @@ def load_images():
     fake_image_folder = "fake_images"
     real_images = [os.path.join(real_image_folder, img) for img in os.listdir(real_image_folder)]
     fake_images = [os.path.join(fake_image_folder, img) for img in os.listdir(fake_image_folder)]
-    selected_images = random.sample(real_images, NUM_ROUNDS / 2) + random.sample(fake_images, NUM_ROUNDS / 2)
+    selected_images = random.sample(real_images, NUM_ROUNDS // 2) + random.sample(fake_images, NUM_ROUNDS // 2)
     random.shuffle(selected_images)
     return selected_images