Chat with redux state manager

serg1557733 0d484e2918 add db private messages il y a 1 an
backend 0d484e2918 add db private messages il y a 1 an
frontend 0d484e2918 add db private messages il y a 1 an
package-lock.json cca472ae25 add media query and some fix il y a 2 ans
package.json cca472ae25 add media query and some fix il y a 2 ans