SpaghettiTrees 1.3.0 alpha 2 for 1.18.2

This version adds randomised undergrowth bush generation, instead of always being oak. Bushes can generate with a randomly selected leaf and wood type (and sometimes with two types of leaves).

Also, Mod Menu config integration is planned for a future release (not too soon though as I have exams).

Thanks to @UntalentedAmateur on GitHub for suggesting random bush generation.