Chat with redux state manager

serg1557733 9b9fcb1af3 clean and fix reducer and socket connection vor 1 Jahr
backend 9b9fcb1af3 clean and fix reducer and socket connection vor 1 Jahr
frontend 9b9fcb1af3 clean and fix reducer and socket connection 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