Add validation of language settings
Add validation of language settings

timelf123/meanio,AMI-NTBU/meanio,kwakuzigah/meanio,ideawake/meanio,kwakuzigah/meanio,lvarayut/meanio,dantix/meanio,mmind-hub/meanio,lvarayut/meanio,AMI-NTBU/meanio,rjVapes/meanio,linnovate/meanio,dantix/meanio,mmind-hub/meanio,ssmlee04/meanio,rjVapes/meanio,ssmlee04/meanio,ideawake/meanio,timelf123/meanio,linnovate/meanio