Chat with redux state manager

serg1557733 49def55c7b add user names for messages hai 1 ano
backend ec14be119a add notifications for new incoming messages hai 1 ano
frontend 49def55c7b add user names for messages hai 1 ano
package-lock.json cca472ae25 add media query and some fix hai 1 ano
package.json cca472ae25 add media query and some fix hai 1 ano