Auto naming chats (using ChatGPT)

[jimzer]

From #20

A feature request is to add an auto-naming feature using a GPT prompt:
After the first user input, a separate GPT call with a prompt (to be designed) can generate a name based on the initial user input.
Rename the chat from "New Chat" to the generated name.
A toggle in Settings can be added to turn this feature off, as it would save on tokens.

[turnercore]

I think this is a really cool idea! It's something that is on the official chatGPT site and is pretty helpful. There should probably be a settings to turn it off to save tokens, and it should probably only work if the chat is still labeled 'New Chat' so we don't overwrite a deliberately labeled chat.

I'm not sure if it would be better to get the name on initial submit or after a couple of messages, probably would require a little testing to see best results.