* add selection of country langages
* Add Greek and Iceland countries
* Update src/modules/poweraccent/PowerAccent.Core/PowerAccent.Core.csproj
* fix ß in all section
* remove greek
* improve UI
* langage to language
* remove GR reference
* change 'All' to 'All available'
* adding Romanian and Hungarian
* Missing characters
* Add Italian
* Fix translation key
Remove GameMode activation
* Fix PR build issues
* Callback to get if a letter is part of the language
* Add additional dlls to installer
* Fix new dlls signing
* Fix spelling
* Add description to language selection
Co-authored-by: Damien LEROY <dleroy@veepee.com>