Chat with redux state manager

serg1557733 b95b4871bf fix usersonline and twice socket connections need to test il y a 1 an
backend b95b4871bf fix usersonline and twice socket connections need to test il y a 1 an
frontend 159183f677 fix editing messages, fix array users back 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