Chat with redux state manager

serg1557733 0af40e8d69 add friends functions to front vor 1 Jahr
backend 0af40e8d69 add friends functions to front vor 1 Jahr
frontend 0af40e8d69 add friends functions to front vor 1 Jahr
package-lock.json cca472ae25 add media query and some fix vor 1 Jahr
package.json cca472ae25 add media query and some fix vor 1 Jahr