Mark `FileData.orig_name` optional on the frontend aligning the type definition on the Python side (#6511)
* Mark `FileData.orig_name` optional on the frontend aligning the type definition on the Python side
* Replace `var` with `const` and rename a variable
* add changeset
* add changeset
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Abubakar Abid <abubakar@huggingface.co>