Fix KeyBoardDialog

[clergetm]

• [x] Put special buttons vertically
• [x] Keep floating Keyboard or find a way to implement it
  • Make it appear at the bottom of the JFrame
  • Make a complete new JPanel with
    • The Field
    • The KeyBoard
  • Check LayeredPane Layout
• [x] Fix Conception
• [x] Maybe do it as a Singleton