Migrate to useEffect

TL;DR

import { useRef, useEffect } from 'react'

const mounted = useRef(false)

useEffect(() => {
  if (mounted.current) {
    mounted.current = true;
    // componentDidMount part
  } else {
    // componentDidUpdate part
  }
  return () => {
    // componentWillUnmount part
  }
}, Array_of_subscribed_props_and_states)