fix: images in child items (#623)

* support parentID search

* fetch images for item children

Former-commit-id: afbc6a49ac

frontend/lib/api/classes/items.ts

@@ -22,6 +22,7 @@ export type ItemsQuery = {
   pageSize?: number;
   locations?: string[];
   labels?: string[];
+  parentIds?: string[];
   q?: string;
   fields?: string[];
 };