Teleporting Enemies Block Tiles

Currently, enemies that teleport are moved using the spatial system (until the next turn, at least, when their position is removed and the map indexing system no longer includes them). They should probably be removed from the spatial map instead, since they're no longer present on the map.

Additionally, in 5.25 multi-tiled enemies aren't handled by the move system or death system. Since those interact with the Spatial Map, they should probably also be updated.