🌙 Add dark mode to gradio docs (#12106)
* dark mode docs!!!
* add changeset
* change footer
* add changeset
* cleanup
* format
* add matchmedia fallback
* clean up
* tweak
* tweak search modal in dark mode
* more dark mode fixes
* format
* add changeset
* Update navbar design in website docs (#12152)
* update desktop nav bar
* format
* light mode dropdown
* dark target fix
* tweak
* tweak
* fix
* format
* update pnpm
* test
* revert
* fix demos on landing page
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Ali Abdalla <ali.si3luwa@gmail.com>
