Chat with redux state manager

serg1557733 b95b4871bf fix usersonline and twice socket connections need to test 2 роки тому
backend b95b4871bf fix usersonline and twice socket connections need to test 2 роки тому
frontend 159183f677 fix editing messages, fix array users back 2 роки тому
package-lock.json cca472ae25 add media query and some fix 2 роки тому
package.json cca472ae25 add media query and some fix 2 роки тому