Multiple changes and fixes from @glmnet and myself

[PofMagicfingers]

I started off the fork from @glmnet.

From his fork :

• windows 10/11 compatibility
• Some fixes : using App Settings instead of a file, keyboard layouts instead of languages, etc

What I added myself :

• .gitignore
• Fix crash when no layout has been selected
• Menu option to reset configuration
• Support for unusual keyboard layouts (dvorak, us-intl, etc)