Chat with redux state manager

serg1557733 3be33a4e2b fix some bugs 2 anni fa
backend 8fb126354d fix some bugs 2 anni fa
frontend 3be33a4e2b fix some bugs 2 anni fa
package-lock.json cca472ae25 add media query and some fix 2 anni fa
package.json cca472ae25 add media query and some fix 2 anni fa