v0.24.0-pre1

Release notes:
- [kpuzzle] `kpuzzle` has been completely overhauled. In particular, `KPuzzle` is now a new, incompatible class, with much better ergonomics and related `KTransformation` and `KState` classes.

- [build] Reduce package size by removing `src`, `docs`, and some of `dist`.
- [twisty] Disable scrubber when you can't scrub.