description name for new_scene doesn't work when use_gpt=False

[chenxinli001]

Hi, thank you for the wonderful work! I noticed an issue with the scene name input functionality in the website. When use_gpt is set to False, the scene name from the input form is not being used, since the scene_name value gets overwritten by scene_dict['scene_name'] in the code.

Would you like to provide suggestions for fixing it?