[TASK] Allow defining card shadow in project-theme

Resources/Private/Templates/Bootstrap5/Youtube/Index.html

@@ -130,7 +130,7 @@
 	<f:variable name="feedItemId">{contentUid}-{settings.id}-{feedIterator}</f:variable>
 	<f:variable name="hasText"><f:if condition="{settings.showTitle} || {settings.showDescription}">1</f:if></f:variable>
 	<f:variable name="hasDescription"><f:if condition="{settings.showDescription} && {feedItem.description}">1</f:if></f:variable>
-	<f:variable name="itemClasses"><f:if condition="{isRowsLayout}"><f:then>hstack flex-wrap gap-4 gap-sm-6 align-items-start</f:then><f:else>card shadow-small border-top h-100</f:else></f:if></f:variable>
+	<f:variable name="itemClasses"><f:if condition="{isRowsLayout}"><f:then>hstack flex-wrap gap-4 gap-sm-6 align-items-start</f:then><f:else>card border-top h-100</f:else></f:if></f:variable>
 	<f:variable name="thumbnailWidth"><f:if condition="{width}"><f:then>{width}</f:then><f:else>1200c</f:else></f:if></f:variable>
 	<f:variable name="thumbnailHeight"><f:if condition="{height}"><f:then>{height}</f:then><f:else>675</f:else></f:if></f:variable>