* initial implementation
* integrate new ai assistant in other projects + ux improvements
* fix chat window on mobile devices
* fixes to mobile
* allow pre
* change shortcut to i
* improved responsiveness
* align version in navbar
- Add a new homepage to `book` project for the routing page
- Move all main doc pages to be under `/v2/learn` (and added redirects + fixed links across docs)
- Other: add admin components to resources dropdown + fixes to search on mobile.
Closes DX-955
Preview: https://docs-v2-git-docs-router-page-medusajs.vercel.app/v2
