Render overview on route pages (#597)

Author: andrii-balitskyi

src/layouts/api-route.hbs

@@ -1,4 +1,8 @@
 # {{title}}
+{{#if overview}}
+
+{{overview}}
+{{/if}}
 
 {{#each resources}}
 {{> api-resource }}

src/lib/layout/api-route.ts

@@ -17,7 +17,7 @@ import type { PathMetadata } from 'lib/path-metadata.js'
 
 export interface ApiRouteLayoutContext {
   title: string
-  description: string
+  overview: string | undefined
   path: string
   resources: Array<
     ApiRouteResource & {
@@ -91,6 +91,7 @@ export function setApiRouteLayoutContext(
   }
 
   file.title = metadata.title
+  file.overview = metadata.overview
   file.path = route.path
 
   const eventsByRoutePath = groupEventsByRoutePath(blueprint.events)