## About The Pull Request
Just a simple find + replace PR. All the other tail defines match their
text strings, but for some reason cat tails are just `FEATURE_TAIL`
which is inconsistent.
## Why It's Good For The Game
Consistency, + a lot of downstreams have a generic "tail" feature key
which is distinct from cat tails, so not taking up that define is
better.
## Changelog
Nothing any players would notice
b7402b77c2