simplify text color in navbar by placing the color on global .navbar component

less/navbar.less

@@ -50,6 +50,7 @@
 
 // Brand, links, text, and buttons
 .navbar {
+  color: @navbarText;
   // Hover and active states
   .brand:hover {
     text-decoration: none;
@@ -69,11 +70,6 @@
   .navbar-text {
     margin-bottom: 0;
     line-height: 40px;
-    color: @navbarText;
-    a:hover {
-      color: @white;
-      background-color: transparent;
-    }
   }
   // Buttons in navbar
   .btn,