* Update ApiToken model
- Add metadata
- Remove unique_together requirement
- Add last_seen field
* Update admin page for token
* Store metadata against token on creation
* Track last-seen date
* Allow match against existing valid token
- If token is expired or revoked, create a new one
- Prevents duplication of tokens
* Update unit tests
* Fix default server
* Improve functionality for extracting frontend settings
* Update default server list
* Use f-strings
* Revert logger name
* Remove mark_safe warning