Update overview page to use new UI patterns

- Use page, section, list-pair to establish
  consistent layout
- Update header and overview page to use new
  caret icon
- Reordered Server and BMC information to
  accomodate small screen views
- Added chevron icons to create consistency
  between header and server overview page
  quick links
- Changed edit hostname text to use the
  standard icon
- Added OR operator to short circuit the server
  model, server serial number, and server manufacturer
  to display N/A if the information is not available

Change-Id: I6619f5369ff290555142e85aa432e901c4f93d2d
Signed-off-by: Derick Montague <derick.montague@ibm.com>
diff --git a/app/common/styles/elements/modals.scss b/app/common/styles/elements/modals.scss
index 87ad432..dc1c9d8 100644
--- a/app/common/styles/elements/modals.scss
+++ b/app/common/styles/elements/modals.scss
@@ -11,9 +11,9 @@
   opacity: 0;
 }
 
-.modal-overlay.active{
+.modal-overlay.active {
   z-index: 100;
-  opacity: .5;
+  opacity: 0.5;
   display: block;
   @include fastTransition-all;
 }
@@ -23,12 +23,12 @@
   height: auto;
   left: 50%;
   top: 50%;
-  transform: translate(-50%,-50%);
+  transform: translate(-50%, -50%);
   max-width: 850px;
   min-width: 450px;
-  padding: .8em 1.5em;
+  padding: 0.8em 1.5em;
   border: thin $primary-dark solid;
-  background-color :$background-01;
+  background-color: $background-01;
   z-index: 101;
   position: fixed;
   overflow: hidden;
@@ -38,13 +38,13 @@
   }
 }
 
-.modal.active{
+.modal.active {
   @include fastTransition-all;
   display: block;
 }
 
 .modal .page-header {
-  padding-bottom: .7em;
+  padding-bottom: 0.7em;
 }
 
 .screen-reader-offscreen {
@@ -61,20 +61,21 @@
 }
 .modal__link {
   display: block;
-  margin: .8em 0 1em;
+  margin: 0.8em 0 1em;
   @include mediaQuery(medium) {
     display: inline-block;
-    margin: .6em 0;
+    margin: 0.6em 0;
   }
 }
+// TODO: Use the form__actions pattern / selector
 .modal__button-wrapper {
   float: right;
   button {
-    margin-bottom: .8em;
-    margin-right: .8em;
+    margin-bottom: 0.8em;
+    margin-right: 0.8em;
     display: inline-block;
     @include mediaQuery(medium) {
-      margin-left: .8em;
+      margin-left: 0.8em;
       margin-right: 0;
     }
   }