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/server-health/controllers/log-controller.html b/app/server-health/controllers/log-controller.html
index 3b164bd..3921c20 100644
--- a/app/server-health/controllers/log-controller.html
+++ b/app/server-health/controllers/log-controller.html
@@ -30,7 +30,7 @@
   <log-search-control></log-search-control>
   <!-- filters -->
   <log-filter></log-filter>
-  <section id="event-log__events" class="row column">
+  <section class="row column event-log__events">
     <div id="event__actions-bar" class="row header__actions-bar no-margin">
       <div class="column small-1 large-1 event-log__col-check">
         <label class="control-check">