Update deDE (#1828)

Core/Locales/common.deDE.lua

@@ -232,4 +232,4 @@ L.health_drain = "Gesundheit entziehen" -- Any ability that drains health from t
 L.smash = "Schmettern" -- Short for any ability with the name "smash" in it e.g. "Darkrift Smash" or "Seismic Smash" or "Arcing Smash"
 L.spike = "Stachel" -- Short for any ability with the name "spike" in it e.g. "Glacial Spike" or "Fel Spike" or "Volatile Spike"
 L.spikes = "Stacheln" -- Plural of L.spike
---L.waves = "Waves" -- Multiple waves of a bad ability coming from a boss, like waves in the ocean
+L.waves = "Wellen" -- Multiple waves of a bad ability coming from a boss, like waves in the ocean