Revert text disable (#9677)
* Revert change on MultimodalTextbox in #9593
* Revert "Disable the submit button and enter-key submit when the text is empty (#9583)"
This reverts commit b92a7623e1ebd801587041e1ccca058a61058da9.
* add changeset
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Freddy Boulton <alfonsoboulton@gmail.com>
