In effort to keep the Examples Directory as easy to navigate as
possible, and to keep the Payload Monorepo only as verbose as it needs
to be, we need to remove all alternatives from the Examples Directory.
This includes setups that interact with Payload from a standalone
server, keeping only the Payload recommended "combined" Next.js +
Payload setups. This will also be applied to all other examples that use
this setup, i.e. draft preview, live preview, etc.
- Adds optional tenant-based cookie handling based by domain (commented
out to leave functionality out by default)
- Removes 2.0 multi-tenant example
- Updates `examples/multi-tenant-single-domain` -->
`examples/multi-tenant`
