message: observe toolbar changes to update the tooltips
diff: import React from "react";
  import ReactTooltip from "react-tooltip";
  +import { reaction } from "mobx";
  +import PlaybackState from "../../stores/view/PlaybackState";
  import "./style.css";
  -export default function Tooltip(props) {
  - return <ReactTooltip className="se-tooltip" place="bottom" effect="solid" html={true} {...props} />;
  +export default class Tooltip extends React.Component {
  + componentDidMount() {
  + this.disposeObserveToolbar = reaction(
  + () => PlaybackState.isPlaying,
  + () => {
  + setTimeout(ReactTooltip.rebuild, 0);
  + }
  + );
  + }
  + componentWillUnmount() {
  + this.disposeObserveToolbar();
  + }
  + render() {
  + return (
  + <ReactTooltip className="se-tooltip" place="bottom" effect="solid" html={true} {...this.props} />
  + );
  + }
  }
  