Move <\i> so 'Flags:' and 'Enabled by:' are rendered similarly

Author: jhrcek

message-index/templates/message.html

@@ -4,7 +4,7 @@
   $if(on_by_default)$
   <i>Enabled by default</i>
   $else$
-  <i>Enabled by:</i> <code>$flag_group$</code>
+  <i>Enabled by: <code>$flag_group$</code></i>
   $endif$
 </p>
 $endif$