Decrease padding between items in Skills section

This wastes less empty space, and prevents lines from wrapping too
early.

templates/modern/css/pdf.css

@@ -66,7 +66,7 @@ body.pdf {
             margin: 0 0 .75em;
         }
         dd {
-            padding: 0 4em 0 0;
+            padding: 0 2em 0 0;
         }
     }
 

templates/modern/css/screen.css

@@ -105,7 +105,7 @@
             margin-bottom: .75em;
         }
         dd {
-            padding: 0 4em 0 0;
+            padding: 0 2em 0 0;
         }
     }