message: types(Skeleton): add SkeletonAvatarShape type
diff: import { withInstall } from '../utils';
  -import _Skeleton from './Skeleton';
  +import _Skeleton, { SkeletonAvatarShape } from './Skeleton';
  export const Skeleton = withInstall(_Skeleton);
  export default Skeleton;
  +export type { SkeletonAvatarShape };
  