gradio

b92a7623 - Disable the submit button and enter-key submit when the text is empty (#9583)

Disable the submit button and enter-key submit when the text is empty (#9583) * Disable the submit button and enter-key submit when the text is empty * add changeset --------- Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>