refactor

frontend/src/ui/QuickAddMenu.tsx

@@ -1,6 +1,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import type { CSSProperties, ReactNode, FormEvent, MutableRefObject } from 'react';
 import { PlusIcon } from './icons';
+import { isPlainObject } from '../utils/typeGuards';
 import useFloatingMenu from './useFloatingMenu';
 
 type QuickAddOption = string | number | { id?: string | number; label?: string; name?: string; [key: string]: unknown };
@@ -16,7 +17,7 @@ const normalizeOption = (option: QuickAddOption | null | undefined, index: numbe
   if (option == null) {
     return null;
   }
-  if (typeof option === 'object') {
+  if (isPlainObject(option)) {
     const label = option.label ?? option.name;
     if (label == null) {
       return null;