2.0.0-beta.2 for 1.21

Fixed an error in the serialization of running spells which has surfaced for the second time due to poor documentation. (@StellarWitch7)
- The offending function has been renamed and documentation clarifying its purpose has been added.
Made the Folding Distortion support iteration over map fragments. (@StellarWitch7)
Added a Creative-only variant of Knot which has infinite mana. Possible texture improvements pending. (@StellarWitch7)
Fixed an issue where two registries with the same identifier were being loaded, causing issues on Neoforge. (@StellarWitch7)