Change app icon to ChatGPT-green

[Ehab-d]

I really like this app and use it all the time. However, the ChatGPT-black icon looks inconsistent with the rest of the colored icons.

Could you please change the icon to ChatGPT-green, since it's the official ChatGPT icon, and just looks better!

[sunnyswag]

the black icon, I think which means GPT-4, GPT-4 is more powerful.
There are no need to change.