4257 - add multi locale support to categories resolver (#161)

src/datasources/category-api.ts

@@ -125,13 +125,13 @@ WHERE product_category.product_id = ?
 
   async getLocaleDataForId(
     id: number,
-    locale?: string,
+    locales?: string[],
   ): Promise<CategoryLocaleData[]> {
     // Dataloaders does not need scopes validation since they
     // use other functions.
     const res = await this.localeDataLoader.load(id);
-    if (locale) {
-      return res.filter((row) => row.locale === locale);
+    if (locales) {
+      return res.filter((row) => locales.includes(row.locale));
     }
     return res;
   }