[Feature] Function calling implementation

[ograycode]

I've implemented a way to interact with openai function calling that goes like this:

1. Functions are attached to the openai api call as described in the documentation.
2. If a function call is returned, the name and arguments are part of the content displayed in the new assistant chat message.
3. A "Play" button is displayed in the chat options (in the same area as "retry") if it is a function call.
4. If the "Play" button is pressed
   • the function is called in the browser and the results appear as a new assistant chat message.
   • the function results are passed as messages to openai for interpretation and displayed as a new assistant chat message

This allows users to implement their own functions to be called, and provides for a pattern to have a server execute the function call in the future.

Let me know if this is a good approach and I can submit a PR in the next couple of days.

This is closely related to #165

[H0llyW00dzZ]

yes go ahead

[Yidadaa]

I need to point out that I'm doing a huge refactor and the code structure will change dramatically in the near future, please keep an eye on this: #2603

[H0llyW00dzZ]

@Yidadaa may you need refactor this for client app in tauri
https://github.com/Yidadaa/ChatGPT-Next-Web/blob/client/app/api/cors/%5B...path%5D/route.ts#L3C1-L3C1

when used runtime nodejs it can't use another tauri api because keep getting this error Error: Page "/api/cors/[...path]" is missing "generateStaticParams()" so it cannot be used with "output: export" config. when building

[Yidadaa]

#3217

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#3217