Move comment author to details content.

Turns out it wasn't a good idea to have the comment author as the
summary element's content since it prevents clicking the comment
author action (because expanding the details element is the click
action).

templates/2k11/admin/style.css

@@ -1820,8 +1820,6 @@ form > .button_link:first-of-type,
     visibility: visible;
 }
 
-
-
 input[name="serendipity[filter][fileCategory]"] {
     display: none;
 }