chore(javascript): fix typings

Author: Fluf22

templates/javascript/clients/client/api/helpers.mustache

@@ -169,8 +169,8 @@ browseObjects<T>(
   }: BrowseOptions<BrowseResponse<T>> & BrowseProps,
   requestOptions?: RequestOptions
 ): Promise<BrowseResponse<T>> {
-  if (browseParams.hitsPerPage == null) {
-    browseParams.hitsPerPage = 1000;
+  if (browseParams == null) {
+    browseParams = { hitsPerPage: 1000 };
   }
 
   return createIterablePromise<BrowseResponse<T>>({