Chat with redux state manager

serg1557733 0d484e2918 add db private messages %!s(int64=2) %!d(string=hai) anos
backend 0d484e2918 add db private messages %!s(int64=2) %!d(string=hai) anos
frontend 0d484e2918 add db private 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