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

- remove @author from comments
- adjust the spacing

css/area_content.less

@@ -1,7 +1,5 @@
 /**
  * This file provides the design styles for the page content.
- *
- * @author Jana Deutschlaender <deutschlaender@cosmocode.de>
  */
 
 .content .row {
@@ -31,23 +29,20 @@
     }
 }
 
-
 .main-content > .level2,
 .main-content > .level1,
 .main-content > .level3,
 .main-content > .level4,
 .main-content > .level5,
 .main-content > .level6 {
-    //padding-bottom: 1rem;
-
-    > p, > ul > li .li {
+    > p,
+    > ul > li .li {
         a {
             font-size: inherit;
         }
     }
 }
 
-
 .level1,
 .level2,
 .level3,