More languages

[baetheus]

• add italian puzzles
• add settings to show/hide puzzles by language

[baetheus]

Current game manager is language agnostic and only compares characters in a string via string split(""). To handle unicode we would need to build puzzles by using the string iterator with ... as outlined in the mdn web docs here. As long as the chars array has length 6 and the unicode renders correctly then puzzles with non utf-8 charsets should work.

Additionally, the game model should be expanded to include a language property that is filterable. The games store should be expanded to pull in each game list by language. Settings should get list of checkboxes that enable/disable filtering of puzzles by language.