### What?
Although the following examples:
- `custom-components`
- `email`
- `multi-tenant`
were recently migrated to 3.0 - they were still using the latest `beta`
version instead of latest payload (i.e `3.0`)
- 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`
