Allow supplying custom gr.Chatbot with events to gr.ChatInterface

[abidlabs]

Fixes: #8675 so that now you can put a gr.ChatInterface inside a gr.Blocks with a custom gr.Chatbot and attach events, like this:

import gradio as gr

def vote(data: gr.LikeData):
    print(data.value)
    if data.liked:
        print("You upvoted this response: " + data.value["value"])
    else:
        print("You downvoted this response: " + data.value["value"])

with gr.Blocks() as demo:
    chatbot = gr.Chatbot()
    chatbot.like(vote, None, None)
    gr.ChatInterface(fn=lambda x,y:x, chatbot=chatbot)
    
demo.launch()

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---

Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/65dc93b2bdc1eca41daa08cbca588de1f0c10b8b/gradio-4.37.2-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@65dc93b2bdc1eca41daa08cbca588de1f0c10b8b#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-builds.s3.amazonaws.com/65dc93b2bdc1eca41daa08cbca588de1f0c10b8b/gradio-client-1.2.1.tgz

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Allow supplying custom gr.Chatbot with events to gr.ChatInterface

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[freddyaboulton]

Nice fix @abidlabs !

[aliabid94]

feel like the "creating a chatbot fast" guide should be quick and sweet, this particular usecase doesn't seem common enough to be here.

[abidlabs]

That's fair, this guide is getting quite bloated. It would be better to move this over to the docs page for gr.ChatInterface. Let me do that

[aliabid94]

LGTM!

[abidlabs]

Thanks folks!