Fix PlayerBucketEmptyEvent to use correct position check

[CatTeaA]

1. When using a lava bucket to place on a waterlogged block, it should use the position of the clicked face rather than the clicked position.
2. When using a specific bucket to place into a cauldron, it should use the cauldron's position instead of the position of the clicked face.
3. When a player is sneaking, using a bucket to place should use the clicked face's position.