Add height parameter and scrolling to gr.Dataframe

[abidlabs]

Pretty self-descriptive. Closes: #2666

Test code:

import gradio as gr
import pandas as pd

df = pd.DataFrame([[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]]*10)

gr.Interface(lambda x:[df, df, df], "textbox", [gr.DataFrame(), gr.DataFrame(height=100), gr.DataFrame(height=200)]).launch()

[gradio-pr-bot]

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---

Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/0d70623a9e757405261bf7979bd3d477b7cb6744/gradio-3.40.1-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@0d70623a9e757405261bf7979bd3d477b7cb6744#subdirectory=client/python"

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/dataframe	minor
gradio	minor

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

With the following changelog entry.

Add height parameter and scrolling to gr.Dataframe

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[dawoodkhan82]

lgtm

[abidlabs]

Thanks @dawoodkhan82 for the review!