Chat with redux state manager

serg1557733 f062b9b26e add loading progres button and fix bugs %!s(int64=2) %!d(string=hai) anos
backend e9d57662c6 fix file sending reducer %!s(int64=2) %!d(string=hai) anos
frontend f062b9b26e add loading progres button and fix bugs %!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