adds boolean to user model which registers whether the user wants to receive email notifications
adds boolean to user model which registers whether the user wants to receive email notifications

daukantas/factlink-core,daukantas/factlink-core,Factlink/factlink-core,daukantas/factlink-core,Factlink/factlink-core,Factlink/factlink-core,daukantas/factlink-core,Factlink/factlink-core