Chat with redux state manager

serg1557733 91b01cda95 add media resize 2 anni fa
backend ba78f41db6 fix send message and add admins funktions, fix bugs 2 anni fa
frontend 91b01cda95 add media resize 2 anni fa
package-lock.json 91b01cda95 add media resize 2 anni fa
package.json 91b01cda95 add media resize 2 anni fa