Revert "Updating frontmatter for SEO"

Author: alex72508

src/content.config.ts

@@ -10,12 +10,7 @@ export const collections = {
         page_id: z.string().uuid(),
         relatedArticles: z.string().array().optional().nullable(),
         app_context: z.array(z.any()).optional(),
-        social_sharing_image_url: z.string().optional(),
-        audience: z.union([z.string(), z.array(z.string())]).optional(),
-        complexity: z.string().optional(),
-        keywords: z.array(z.string()).optional(),
-        ai_summary: z.string().optional(),
-        updated: z.union([z.string(), z.date()]).optional()
+        social_sharing_image_url: z.string().optional()
       })
     })
   }),