Function onStorage

packages/react-devtools-shared/src/devtools/views/hooks.js:203–208

  useLayoutEffect(() => {
    // $FlowFixMe[missing-local-annot]
    const onStorage = event => {
      const newValue = getValueFromLocalStorage();
      if (key === event.key && storedValue !== newValue) {
        setValue(newValue);
      }
    };

    window.addEventListener('storage', onStorage);
    return () => {