fix(docs): preserve dates when loading page content

Author: waleedlatif1

apps/docs/app/[[...slug]]/page.tsx

@@ -316,15 +316,15 @@ export default async function Page(props: { params: Promise<{ slug?: string[] }>
     )
   }
 
-  const { body: MDX, toc } = await data.load()
+  const { body: MDX, toc, lastModified } = await data.load()
 
   return (
     <>
       <StructuredData
         title={data.title}
         description={data.description || ''}
         url={`${BASE_URL}${page.url}`}
-        dateModified={data.lastModified?.toISOString()}
+        dateModified={lastModified?.toISOString()}
         breadcrumb={breadcrumbs}
       />
       <DocsPage

apps/docs/lib/source.ts

@@ -129,5 +129,5 @@ export type PageData = DocData &
     description?: string
     full?: boolean
     integration?: { type: string; color: string }
-    load: () => Promise<DocData>
+    load: () => Promise<DocData & { lastModified?: Date }>
   }