Fixes TabbedInterface bug where only first interface events get triggered

[freddyaboulton]

Description

Closes: #8425

Test with the following demo:

import gradio as gr

hello_world = gr.Interface(lambda name: "Hello " + name, "text", "text")
bye_world = gr.Interface(lambda name: "Bye " + name, "text", "text")

demo = gr.TabbedInterface([hello_world, bye_world], ["Hello World", "Bye World"])

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

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[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/70331159cf04e29904fb594ecdb0e3a2392db01f/gradio-4.36.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@70331159cf04e29904fb594ecdb0e3a2392db01f#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-builds.s3.amazonaws.com/70331159cf04e29904fb594ecdb0e3a2392db01f/gradio-client-1.1.0.tgz

[gradio-pr-bot]

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With the following changelog entry.

Fixes TabbedInterface bug where only first interface events get triggered

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[freddyaboulton]

Thoughts on using uuids for the ids @aliabid94 ?

[abidlabs]

We should test the /predict_1 endpoint as well

Suggested change

	assert client.predict("Hannah", api_name="/predict") == "Hello Hannah"
	assert client.predict("Hannah", api_name="/predict_1") == "Bye Hannah"

[abidlabs]

lgtm thanks @freddyaboulton!