fixed plague rats, buffed revenge rats

Fixed a bug with rat perks causing rats to spawn inside terrain. Added Revenge Explosion and Plague Rats. Reduced rat perks from spawning 2 rats to occasionally spawning 2 rats

Fixed a bug that caused all generated potion pickups to be filled with lava

Levitation trail now does ~280 dps, or around 2.5x what it did in the last patch of this mod (which says a lot about how weak this perk is in vanilla). Now has infinite range, but no longer goes through terrain.

Corrected mana from kills providing mana from enemies not killed by the player which is a feature of vanilla noita but was left alone due to how short the effect normally is

Fixed rage levitation to not randomly trigger

First release