Increase the global margin size for page section

- Increase the global margin bottom size to 4rem for the page section.
- Kept same size for responsive sizes.

Signed-off-by: Suren Neware <sneware9@in.ibm.com>
Change-Id: I155006a0ea9a7f6fd947d6daaea4510cadf641db
diff --git a/src/components/Global/PageSection.vue b/src/components/Global/PageSection.vue
index 48bb8a1..303b6e1 100644
--- a/src/components/Global/PageSection.vue
+++ b/src/components/Global/PageSection.vue
@@ -19,17 +19,11 @@
 
 <style lang="scss" scoped>
 .page-section {
-  margin-bottom: $spacer * 2;
+  margin-bottom: $spacer * 4;
 }
 
 h2 {
   @include font-size($h3-font-size);
   margin-bottom: $spacer;
-  &::after {
-    content: '';
-    display: block;
-    width: 100px;
-    margin-top: 10px;
-  }
 }
 </style>