fix: create deep copy of file passed into tree

Ben Schlegel

2023-09-16 fea352849c6972da4b3b8935eb2e86f6cefc76ed

 index.d.ts

@@ -5,7 +5,7 @@

// dom custom event
interface CustomEventMap {
  nav: CustomEvent<{ url: CanonicalSlug }>
  nav: CustomEvent<{ url: FullSlug }>
}

declare const fetchData: Promise<ContentIndex>