Update app.py

app.py

@@ -9,7 +9,7 @@ cwd0 = os.getcwd()
 cwd1 = os.path.join(cwd0, "yolo-world-with-efficientvit-sam")
 os.chdir(cwd1)
 os.system("make setup")
-os.chdir(f"cd /home/user/app")
+os.chdir(f"/home/user/app")
 
 # os.system(f"pip install inference[yolo-world]==0.9.13")
 # print("install inference-yolo-world")