Chat Container - Copy this React, Mui Component to your project

I need a chat that should have a field for my message. In the lower right corner there should be an icon that, when clicked, should open the chat window. The chat window should take up a third of the window and be the full height of the window. In the chat window, I need a button that should be called Create Email. After clicking this button, the chat should expand to its full width and split into two parts. In one part, the chat should remain, which was. And in the second part, the Email constructor should appear. Also, there should be buttons to close the entire window, close the Email builder but leave the chat, and close the entire window. The style of this chat and all windows should be like ChatGPT in a modern design. The default color scheme should be the normal ChatGPT color scheme, but there should be a button to switch to a light theme.