Update app.py

app.py

@@ -116,7 +116,7 @@ def video_frame_callback(frame: av.VideoFrame) -> av.VideoFrame:
                    cv2.putText(img, button.text, (x + int(0.2 * bw), y + int(0.7 * bh)), cv2.FONT_HERSHEY_PLAIN, font_scale, (255, 255, 255), font_thickness)
 
                     # Handle button press
-                    if (distance / np.sqrt(bbox[2] ** 2 + bbox[3] ** 2)) * 100 < click_threshold:
+                   if (distance / np.sqrt(bbox[2] ** 2 + bbox[3] ** 2)) * 100 < click_threshold:
                         if time.time() - prev_key_time[0] > 2:
                             prev_key_time[0] = time.time()
                             if button.text != 'BS' and button.text != 'SPACE':