Update app.py

app.py

@@ -28,6 +28,7 @@ os.system(f"aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggin
 os.chdir(f"/home/user/app/stable-diffusion-webui/extensions")
 os.system(f"git clone https://github.com/Mikubill/sd-webui-controlnet.git")
 os.system(f"git clone https://github.com/ahgsql/StyleSelectorXL.git")
+os.system(f"git clone https://github.com/thomasasfk/sd-webui-aspect-ratio-helper.git")
 # Installing required dependencies (if any)
 os.chdir(f"/home/user/app/stable-diffusion-webui/extensions/sd-webui-controlnet/models")