Unable to scroll past Attach Files option using the keyboard arrow keys

Steps to Reproduce

• Open an issue
• Click the "More" button
• Use the arrow down key in the keyboard to navigate through the menu 

Observed Behaviour

 Unable to get past "Attach Files" option

Expected Behaviour

To be able to access all menu items using the keyboard keys

Workaround

Put this script in announcement banner or append the body part to existing script tag in there:

<script>
 jQuery(document).ready(removeMenuItem);
 function removeMenuItem () {
 if($('#attach-file').is(':visible'))
{ $("#attach-screenshot-html5").remove(); }
else
{ setTimeout(removeMenuItem, 1); }
}
 </script>