Fix the z-index of elements window
Fix the z-index of elements window

The tooltips from the elements window toolbar are hidden below the top menu otherwise.

mamhoff/alchemy_cms,robinboening/alchemy_cms,mamhoff/alchemy_cms,robinboening/alchemy_cms,robinboening/alchemy_cms,AlchemyCMS/alchemy_cms,mamhoff/alchemy_cms,AlchemyCMS/alchemy_cms,AlchemyCMS/alchemy_cms