fix(navbar): Doc nav-link appearance,

dt,dd appearance on large screens

Author: duncdrum

src/main/frontend/sass/_variables.scss

@@ -82,7 +82,7 @@
   }
   dl.wide {
     dt {
-      width: 25em;
+      width: 35em;
       word-wrap: break-word;
     }
     dd {

src/main/xar-resources/templates/page.html

@@ -54,7 +54,7 @@
             <li class="nav-item dropdown" id="documentation">
               <a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown">Documentation</a>
               <div class="dropdown-menu">
-                  <a class="nav-link dropdown-item" href="documentation.xml">Documentation</a>
+                  <a class="dropdown-item" href="documentation.xml">Documentation</a>
                   <a class="dropdown-item" href="author-reference.xml">author guidelines</a>
                   <a class="dropdown-item" href="getting-help.xml">Get Support</a>
                 <div class="dropdown-divider"></div>