improve less formating - part 2 (template area and base modules)

- remove @author from comments
- adjust the spacing

css/area_nav-pagetools.less

@@ -1,7 +1,5 @@
 /**
  * This file provides the design styles for the page specific tool bar.
- *
- * @author Jana Deutschlaender <deutschlaender@cosmocode.de>
  */
 
 /*
@@ -21,7 +19,6 @@
 .pagetools-item(img_backto, 12);
 */
 
-
 #dokuwiki__aside {
     @media @screen_max-md {
         display: none !important;