Removes css tag that overrides Gradio theme setting (#10390)
* @media (prefers-color-scheme: dark) overrides the gradio theme setting; removing as it is redundant.
* add changeset
* add changeset
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Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
