update the language codes logic to support zh-cn, zh-tw, zh-sg, zh-hk, zh-mo
update the language codes logic to support zh-cn, zh-tw, zh-sg, zh-hk, zh-mo

josve05a/wikipedia-ios,anirudh24seven/wikipedia-ios,wikimedia/apps-ios-wikipedia,wikimedia/apps-ios-wikipedia,wikimedia/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,julienbodet/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,julienbodet/wikipedia-ios,julienbodet/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/apps-ios-wikipedia,julienbodet/wikipedia-ios,montehurd/apps-ios-wikipedia,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,wikimedia/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,montehurd/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/wikipedia-ios,anirudh24seven/wikipedia-ios,anirudh24seven/wikipedia-ios,wikimedia/wikipedia-ios,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/apps-ios-wikipedia,anirudh24seven/wikipedia-ios