Fixes options in the streaming chatbot case

[abidlabs]

For reasons I don't fully understand, my previous approach seemed to be triggering a race condition in the frontend. Using reactive props fixes it.

Closes: #10102

Test with:

import gradio as gr
import time

def example(message, history):
    for i in range(len(message)):
        time.sleep(0.1)
        yield {"role": "assistant", "content": message[:i+1]}
    yield {"role": "assistant", "content": message, "options":[{"value": "Yes, that's correct.", "label": "Yes"}, {"value": "No", "label": "No"}]}

demo = gr.ChatInterface(
    example,
    type="messages",
)

if __name__ == "__main__":
    demo.launch()

[gradio-pr-bot]

🪼 branch checks and previews

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---

Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/295c5337dfc92d39007ba1f41b506fb99e1499c3/gradio-5.7.1-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@295c5337dfc92d39007ba1f41b506fb99e1499c3#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/295c5337dfc92d39007ba1f41b506fb99e1499c3/gradio-client-1.8.0.tgz

Use Lite from this PR

<script type="module" src="https://gradio-lite-previews.s3.amazonaws.com/295c5337dfc92d39007ba1f41b506fb99e1499c3/dist/lite.js""></script>

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/chatbot	patch
gradio	patch

• Maintainers can select this checkbox to manually select packages to update.

With the following changelog entry.

Fixes options in the streaming chatbot case

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[freddyaboulton]

Looks good to me!

[abidlabs]

Thanks again @freddyaboulton!