Update global typography

Updated the following body, label, and heading
styles to match new style guide:
- Font sizes
- Font weight
- Line height
- Color

Signed-off-by: Dixsie Wolmers <dixsie@ibm.com>
Change-Id: I014c968f6542b697fec8c3b9af781e64ac10794d
diff --git a/src/views/Overview/OverviewNetwork.vue b/src/views/Overview/OverviewNetwork.vue
index a495fae..70a8474 100644
--- a/src/views/Overview/OverviewNetwork.vue
+++ b/src/views/Overview/OverviewNetwork.vue
@@ -8,9 +8,9 @@
       v-else
       :key="ethernetInterface.id"
     >
-      <p class="h6 interface-name font-weight-bold">
+      <h3 class="h5 interface-name font-weight-bold">
         {{ ethernetInterface.Id }}
-      </p>
+      </h3>
       <b-row>
         <b-col md="12" lg="4">
           <dl>