message: Add cleanup functions for image view
diff: @@ -114,6 +114,8 @@ export default class ImageView extends React.Component<IProps, IState> {
  componentWillUnmount() {
  this.focusLock.current.removeEventListener('wheel', this.onWheel);
  + window.removeEventListener("resize", this.calculateZoom);
  + this.image.current.removeEventListener("load", this.calculateZoom);
  }
  private calculateZoom = () => {
  