Move some error pages to website-redesign layout (#31087)

GitOrigin-RevId: 1b52461771946137f10d803a788bd80423ad2967

services/web/app/views/general/404.pug

@@ -1,7 +1,10 @@
 extends ../layout-marketing
 
+block vars
+	- isWebsiteRedesign = true
+
 block content
-	main#main-content.content.content-alt
+	main#main-content.content
 		.container
 			.error-container
 				.error-details