* As discussed in the Gamemode 4 Discord, the Boots of Ostara's ability
   to place crops was never really useful as the module ticks too slowly
   to be better than placing by hand, and pig tractors exists for
   automated usage. Hence, that functionality was removed. The ability
   for players and armor stands to spread grass blocks remains.

 * The custom crafting recipe for Boots of Ostara now preserves the NBT
   of the leather boots used in the recipe, such as CustomModelData,
   enchantments, and shamirs. The Lore tag is prepended to instead of
   overriden, as well, to preserve existing lore when present.

 * Instead of checking whether the Boots of Ostara are equipped
   separately from the player holding a grass block, there is now a
   predicate that checks for both at once, since holding a grass block
   while wearing boots of ostara is the only remaining feature other
   than block_desire_lines (which isn't part of the 'main' function).