Add updated table styles

  - Refer below link for styles:
      https://ibm.invisionapp.com/share/D8O06PPE32B#/screens

Signed-off-by: Sukanya Pandey <sukapan1@in.ibm.com>
Change-Id: I6dcc3b8d0fb7ef19388b5bfeaf87fce78725b638
diff --git a/src/views/Configuration/NetworkSettings/NetworkSettings.vue b/src/views/Configuration/NetworkSettings/NetworkSettings.vue
index 863f2ab..4a181fd 100644
--- a/src/views/Configuration/NetworkSettings/NetworkSettings.vue
+++ b/src/views/Configuration/NetworkSettings/NetworkSettings.vue
@@ -104,6 +104,7 @@
             <b-col lg="9" class="mb-3">
               <b-table
                 responsive="md"
+                hover
                 :fields="ipv4StaticTableFields"
                 :items="form.ipv4StaticTableItems"
                 class="mb-0"
@@ -217,6 +218,7 @@
             <b-col lg="4" class="mb-3">
               <b-table
                 responsive
+                hover
                 :fields="dnsTableFields"
                 :items="form.dnsStaticTableItems"
                 class="mb-0"