Fix monster selecter page

[swirle13]

• A few monsters are in the wrong level
• Siren and Dagon can't be rolled from the monster pool, even when using skellige expansion
• Legendary Hunt and Wild Hunt are not mutually exclusive

[swirle13]

Fixed via https://github.com/swirle13/The-Witcher-Old-World-Tool/commit/331d6f8734578d09d039e7046358bfb813d8152c