Chat with redux state manager

serg1557733 bf0c75916f add manifest file for pwa 2 vuotta sitten
backend bf0c75916f add manifest file for pwa 2 vuotta sitten
frontend bf0c75916f add manifest file for pwa 2 vuotta sitten
package-lock.json cca472ae25 add media query and some fix 2 vuotta sitten
package.json cca472ae25 add media query and some fix 2 vuotta sitten