Update getContentItems to return total count and items

The changes involved modifying the implementation of `getContentItems` across multiple files, specifically in the CMS-related codebase. This method now returns an object containing the total count of items and the items themselves. The updates also included necessary adjustments in the code where `getContentItems` is called to accommodate the new structure of the returned result.

apps/web/app/(marketing)/docs/layout.tsx

@@ -5,12 +5,10 @@ import { DocsNavigation } from '~/(marketing)/docs/_components/docs-navigation';
 async function DocsLayout({ children }: React.PropsWithChildren) {
   const cms = await createCmsClient();
 
-  const pages = await cms.getContentItems({
+  const { items: pages } = await cms.getContentItems({
     collection: 'documentation',
   });
 
-  console.log(pages);
-
   return (
     <div className={'flex'}>
       <DocsNavigation pages={buildDocumentationTree(pages)} />