Chat with redux state manager

serg1557733 49def55c7b add user names for messages %!s(int64=2) %!d(string=hai) anos
backend ec14be119a add notifications for new incoming messages %!s(int64=2) %!d(string=hai) anos
frontend 49def55c7b add user names for messages %!s(int64=2) %!d(string=hai) anos
package-lock.json cca472ae25 add media query and some fix %!s(int64=2) %!d(string=hai) anos
package.json cca472ae25 add media query and some fix %!s(int64=2) %!d(string=hai) anos