Chat with redux state manager

serg1557733 4c28157dc0 add private messages counter labe 1 rok pred
backend 4c28157dc0 add private messages counter labe 1 rok pred
frontend 4c28157dc0 add private messages counter labe 1 rok pred
package-lock.json cca472ae25 add media query and some fix 1 rok pred
package.json cca472ae25 add media query and some fix 1 rok pred