docs: update bulk editor user guide + add redirect from old v1 next js (#12104)

* docs: update bulk editor user guide + add redirect from old v1 next js

* update page titles

www/apps/book/utils/redirects.mjs

@@ -153,6 +153,11 @@ const redirects = async () => {
       destination: "/learn/fundamentals/data-models/properties",
       permanent: true,
     },
+    {
+      source: "/starters/nextjs-medusa-starter",
+      destination: "/resources/nextjs-starter",
+      permanent: true,
+    },
   ]
 }