More fixes for 1.16
- Added an option to disable 1.16 fish because they can spawn a ton at once and cause a shit ton of lag.
- Disable ExperimentalDupePatch2 in 1.16 because it causes a SHIT ton of mobs to spawn, and not despawn. https://i.imgur.com/f691cep.png
- Disable any chunk checking in 1.16 because it causes a shit ton of errors