Chat with redux state manager

serg1557733 52f374141a add normal time format with relative date js 1 anno fa
backend 711a0f6511 fix some bugs v1 1 anno fa
frontend 52f374141a add normal time format with relative date js 1 anno fa
package-lock.json cca472ae25 add media query and some fix 1 anno fa
package.json cca472ae25 add media query and some fix 1 anno fa