fix: modal z-index cleanup (#5234)

web/app/components/app/annotation/batch-add-annotation-modal/index.tsx

@@ -87,7 +87,7 @@ const BatchModal: FC<IBatchModalProps> = ({
   }
 
   return (
-    <Modal isShow={isShow} onClose={() => { }} wrapperClassName='!z-[20]' className='px-8 py-6 !max-w-[520px] !rounded-xl'>
+    <Modal isShow={isShow} onClose={() => { }} className='px-8 py-6 !max-w-[520px] !rounded-xl'>
       <div className='relative pb-1 text-xl font-medium leading-[30px] text-gray-900'>{t('appAnnotation.batchModal.title')}</div>
       <div className='absolute right-4 top-4 p-2 cursor-pointer' onClick={onCancel}>
         <XClose className='w-4 h-4 text-gray-500' />