fix: Update admin page to use @payload-config path alias

Co-Authored-By: Nathan Clevenger <nateclev@gmail.com>

Author: devin-ai-integration[bot]

app/(admin)/admin/[[...segments]]/page.tsx

@@ -2,7 +2,7 @@
 /* DO NOT MODIFY IT BECAUSE IT COULD BE REWRITTEN AT ANY TIME. */
 import type { Metadata } from 'next'
 
-import config from 'payload.config'
+import config from '@payload-config'
 import { RootPage, generatePageMetadata } from '@payloadcms/next/views'
 import { importMap } from '../importMap'