generate docs json in ci, reimplement main vs release (#5092)
* fixup site
* fix docs versions
* test ci
* test ci some more
* test ci some more
* test ci some more
* asd
* asd
* asd
* asd
* asd
* asd
* asd
* asd
* asd
* test
* fix
* add changeset
* fix
* fix
* fix
* test ci
* test ci
* test ci
* test ci
* test ci
* test ci
* test ci
* test ci
* test ci
* notebook ci
* notebook ci
* more ci
* more ci
* update changeset
* update changeset
* update changeset
* fix site
* fix
* fix
* fix
* fix
* fix ci
* render mising pages
* remove changeset
* fix path
* fix workflows
* fix workflows
* fix workflows
* fix comment
* tweaks
* tweaks
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Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
