Ensure "Click to launch" shows the click cursor
    
    Currently the EC2 "Click to launch" button is purely a <p> tag which does not
    show the "pointer" cursor. This makes it unclear it is a button that can be
    clicked.
    
    This changes the "Click to launch" button to an unstyled <a> tag wrapped
    in a <p> tag with the same style as the "Download" links
    elsewhere on the page which do correctly show the "pointer" cursor.