Add missing keys to _altGrMap[]
Add missing keys to _altGrMap[]

Thecakeisgit/LocaleKeyboard.js,Nurrl/LocaleKeyboard.js,Nurrl/LocaleKeyboard.js,Thecakeisgit/LocaleKeyboard.js,Thecakeisgit/LocaleKeyboard.js,Nurrl/LocaleKeyboard.js