- closes https://github.com/supabase/supabase/issues/47606
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## Summary by CodeRabbit
* **Bug Fixes**
* Copying cell values now preserves `false` and `0` instead of treating
them like empty values.
* Clipboard copy behavior now only returns blank for truly empty inputs,
helping keep table data accurate when copied.
* **Tests**
* Added end-to-end coverage for copying table cells with `false`, `0`,
and `true` values.
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