Update the score summary margin right

The new billing and metering list item in the supplier summary on the
"More details" page pushes the final list item onto a new line when
looking at it on a desktop.  We could therefore slightly reduce the
margin-right by a few pixels to prevent this happening.  It will mean
that the margin-right will be reduced now in readiness for March, so
this will need sign off/approval

Author: KPobeeNorris

app/assets/stylesheets/components/_score-summary.scss

@@ -29,7 +29,7 @@
 
   @include cads-media-breakpoint-up(md) {
     display: inline-block;
-    margin-right: $cads-spacing-7;
+    margin-right: $cads-spacing-5;
     vertical-align: top;
   }
 }