message: fix(useFullscreen): replace the initial value with screenfull.isFullscreen
diff: @@ -17,7 +17,7 @@ const useFullscreen = (target: BasicTarget, options?: Options) => {
  const onExitRef = useLatest(onExit);
  const onEnterRef = useLatest(onEnter);
  - const [state, setState] = useState(false);
  + const [state, setState] = useState(Boolean(screenfull.isFullscreen));
  const onChange = () => {
  if (screenfull.isEnabled) {
  @@ -49,6 +49,9 @@ const useFullscreen = (target: BasicTarget, options?: Options) => {
  };
  const exitFullscreen = () => {
  + if (!state) {
  + return;
  + }
  if (screenfull.isEnabled) {
  screenfull.exit();
  }
  