fix: change the randomseed before each battle

Fix #42

sonic-radiance.love/scenes/battlesystem/controllers/init.lua

@@ -28,6 +28,9 @@ function TurnController:new(scene, battleData)
 
   self.player = Player(self)
   self.ennemies = Ennemy(self, battleData)
+
+  -- Change the seed at the start of each battle
+  math.randomseed( os.time() )
 end
 
 function TurnController:startBattle()