Chat with redux state manager

serg1557733 55992529b6 add serwiceworker template and swregistration for pwa il y a 1 an
backend bf0c75916f add manifest file for pwa il y a 1 an
frontend 55992529b6 add serwiceworker template and swregistration for pwa 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