refactor: update docs schema definition + export type

Author: pheralb

docs/src/content/config.ts

@@ -1,12 +1,16 @@
 import { z, defineCollection } from 'astro:content';
 
+const docsSchema = z.object({
+  title: z.string(),
+  description: z.string(),
+  category: z.string(),
+});
+
+export type Docs = z.infer<typeof docsSchema>;
+
 const docsCollection = defineCollection({
   type: 'content',
-  schema: z.object({
-    title: z.string(),
-    description: z.string(),
-    category: z.string(),
-  }),
+  schema: docsSchema,
 });
 
 export const collections = {