Dispatch change event for file explorer (#7441)
* changes
* add changeset
* changes
* changes
* fix test reqs in functional tests
* fix notebooks
* fix notebooks
* fix test flake
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Co-authored-by: Ali Abid <aliabid94@gmail.com>
Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: pngwn <hello@pngwn.io>
