Minor bugfixes

Some small bugfixes:

• I used multiple sprites for armors instead of using a shader to overdraw them. Should work on all devices now. The game is a bit larger but definitely quicker and smoother.
• Now it should not be possible to fail just because being teleported by the witch. The problem was that player was able to be under a ground level which causes quick death when materializing in the solid mass.
• Game now remembers its language settings and will not set automatically after shutdown.
• Small text fixes (most in the Czech version)

If you can find more bugs, let me know so I can smash them!