Fixed error in Powder's backfire message, fixed move disruption affecting recharge moves when it shouldn't, fixed error when Shell Side Arm has no targets, fixed AI not unregistering Mega Evolution if it won't do so after all

Data/Scripts/020_Debug/001_Editor screens/003_EditorScreens_MapConnections.rb

@@ -491,7 +491,6 @@ class MapScreenScene
         end
       end
     end
-    # TODO: FPS. Scroll speed with arrow keys. Can probably leave this alone.
     if Input.press?(Input::UP)
       @mapsprites.each do |i|
         i[1].y += 4 if i