Fix extension line height

Author: benjiwheeler

src/components/library-item/library-item.css

@@ -139,7 +139,9 @@
 .featured-description {
     display: block;
     font-weight: normal;
-    line-height: 2;
+    line-height: 1.375rem;
+    padding-top: .3125rem;
+    padding-bottom: .25rem;
 }
 
 .featured-extension-metadata {