Removed unneeded isFeatured param for cards (#840)

* chore: Removed unneeded isFeatured param for cards, replaced with isFullSize

Author: lamATnginx

content/nginx-one/_index.md

@@ -22,7 +22,7 @@ F5 NGINX One Console makes it easy to manage NGINX instances across locations an
 
 {{<card-layout>}}
   {{<card-section showAsCards="true" isFeaturedSection="true">}}
-    {{<card title="Get started" titleUrl="/nginx-one/getting-started/" isFeatured="true" icon="unplug">}}
+    {{<card title="Get started" titleUrl="/nginx-one/getting-started/" icon="unplug" isFullSize="true">}}
       Get up and running with NGINX One Console
     {{</card >}}
   {{</card-section>}}