Adds --host cli option support

[abidlabs]

Closes: #391

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
trackio	minor

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• Adds --host cli option support

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[gradio-pr-bot]

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[HuggingFaceDocBuilderDev]

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[Saba9]

looks good!

[abidlabs]

Thanks @Saba9!