message: Removed navigation listener from shared el
  Needed to remeasure on native, but on web move measure into shared el
  motion
diff: @@ -23,10 +23,9 @@ class SharedElement extends React.Component<any, any> {
  return this.props.stateNavigator || this.context.stateNavigator;
  }
  componentDidMount() {
  - this.getStateNavigator().onNavigate(this.register);
  + this.register();
  }
  componentWillUnmount() {
  - this.getStateNavigator().offNavigate(this.register);
  this.context.unregisterSharedElement(this.crumb, this.props.name);
  }
  register() {
  