docs: update side nav (#9178)
* update getting started to overview
* hide side nav for release notes
* hide blog from sidenav
* add export group to add internationalize to react aria side nav
* remove releases from react spectrum side nav
* update side nav to include internationalized in react aria
* explore component opens search menu
* fix routing?
* fix some stuff from merge conflict
* pls fix lint
* update github logo to link
* fix lint
* add back beta badge
* fix lint
