This PR adds a top-level `auth` property to the Payload config, where
you can specify a new `jwtOrder` property to dictate, in Payload's local
auth strategy, which JWT extraction methods should be leveraged, and in
which order.
For example, we currently use incoming request headers to retrieve a JWT
in the following order:
1. If there is an `Authorization: JWT ${token}` header
2. If there is an `Authorization: Bearer ${token}` header
3. If there is an HTTP-only cookie with a token present
Now you can define which of these strategies you'd like to support, and
in which order.
Todo:
- [ ] Docs
- [ ] Tests