docs: revise main docs outline (#10502)

www/apps/resources/app/recipes/omnichannel/page.mdx

@@ -52,7 +52,7 @@ Another channel that attracts customer sales is social media. You can create a c
     icon: AcademicCapSolid,
   },
   {
-    href: "!docs!/learn/basics/modules",
+    href: "!docs!/learn/fundamentals/modules",
     title: "Create a Module",
     text: "Learn how to create a module.",
     icon: AcademicCapSolid,
@@ -73,13 +73,13 @@ Medusa’s architecture also makes it easier to integrate any third-party servic
 
 <CardList itemsPerRow={2} items={[
   {
-    href: "!docs!/learn/basics/modules",
+    href: "!docs!/learn/fundamentals/modules",
     title: "Create a Module",
     text: "Learn how to create a module.",
     icon: AcademicCapSolid,
   },
   {
-    href: "!docs!/learn/basics/api-routes",
+    href: "!docs!/learn/fundamentals/api-routes",
     title: "Create an API Route",
     text: "Learn how to create an API route.",
     icon: AcademicCapSolid,