title: Chrome Extension detect mouseover on context menu item
body: <p>Is it possible to detect the mouseover event on the custom context menu item added with 'chrome.contextMenus.create({...})'?</p>
  
  <p>I want to kind of "preview" the action of the menu item when the user hovers their mouse over that menu item. So to do that I need to detect when the mouse is hovering over that item.</p>
  
  <p>Is this possible?</p>