ISTWCMS-4616: Moving facebook icon, and fixing border.

source/_patterns/04-components/facebook/_facebook.scss

 .uw-facebook {
+  display: grid;
   padding: 1rem 0;
   width: 100%;
 
@@ -21,7 +22,7 @@
   .fb-post,
   .fb-page {
     background: url('../source/images/icons/facebook_logo.png') no-repeat;
-    background-position: center center;
+    background-position: 50% 25%;
     min-height: 340px;
     text-align: center;
     width: 100%;