feat(solid-start): introduce `@auth/solid-start` package/example (#6158)
* feat: add solid framework package and example
* solidstart docs
* Update 02-oauth-tutorial.mdx
* minor docs fixes
* Fix sidebar typo
* Update sync.yml
* Update sidebars.js
* minor fixes
* fix deps
* upgrade auth example
* Update root.tsx
* Update NavBar.tsx
* Update Protected.tsx
* protected
* move example
* Update sidebars.js
Co-authored-by: Balázs Orbán <info@balazsorban.com>
Co-authored-by: Nico Domino <yo@ndo.dev>