message: align context menus even better
diff: @@ -69,7 +69,8 @@ interface IState {
  }
  const contextMenuBelow = (elementRect) => {
  - const left = elementRect.left + window.pageXOffset - 6;
  + // align the context menu's icons with the icon which opened the context menu
  + const left = elementRect.left + window.pageXOffset - 9;
  let top = elementRect.bottom + window.pageYOffset + 17;
  const chevronFace = "none";
  return {left, top, chevronFace};
  