Chat with redux state manager

serg1557733 7e3d8d437e add procfile heroku %!s(int64=2) %!d(string=hai) anos
backend 7e3d8d437e add procfile heroku %!s(int64=2) %!d(string=hai) anos
frontend c1488232b9 test commit heroku %!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