feat(users): separate revenue center cards

inc/helpers/user-center-renderers/profile-invite.php

@@ -7,7 +7,7 @@
 
 defined('ABSPATH') || exit;
 ?>
-<section class="uc-promotion-panel" aria-labelledby="uc-promotion-title" data-aksrt-invite>
+<section class="uc-promotion-panel uc-promotion-card" aria-labelledby="uc-promotion-title" data-aksrt-invite>
 	<header class="uc-promotion-panel__header">
 		<span class="uc-promotion-panel__icon"><i class="fas fa-user-plus" aria-hidden="true"></i></span>
 		<div>