Chat with redux state manager

serg1557733 52f374141a add normal time format with relative date js il y a 1 an
backend 711a0f6511 fix some bugs v1 il y a 1 an
frontend 52f374141a add normal time format with relative date js il y a 1 an
package-lock.json cca472ae25 add media query and some fix il y a 1 an
package.json cca472ae25 add media query and some fix il y a 1 an