Adjust rounding logic when precision is None in gr.Number()

[hannahblair]

Description

Adjusts the _round_to_precision func logic such that if precision is None, we return num without casting the value to float.

Closes: #6786

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/6e0592325721d4b295161461f00fc5ad8c39b96d/gradio-4.10.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@6e0592325721d4b295161461f00fc5ad8c39b96d#subdirectory=client/python"

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🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	patch

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Adjust rounding logic when precision is None in gr.Number()

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[freddyaboulton]

Looks good to me @hannahblair Thanks!

[dawoodkhan82]

Lgtm! Thanks for adding the tests