Support a list of Trackio.Image in a trackio.Table cell

[abidlabs]

Closes: #334

No AI used for implementation, Cursor used to write the new test.

[gradio-pr-bot]

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[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
trackio	patch

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• Support a list of Trackio.Image in a trackio.Table cell

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✅ Changeset approved by @abidlabs

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