Refactor misc code to ES6 style
Refactor misc code to ES6 style

mociepka/saleor,mociepka/saleor,UITools/saleor,UITools/saleor,maferelo/saleor,maferelo/saleor,maferelo/saleor,UITools/saleor,mociepka/saleor,UITools/saleor,UITools/saleor