Chore: frontend infrastructure upgrade (#16420)

Co-authored-by: NFish <douxc512@gmail.com>
Co-authored-by: zxhlyh <jasonapring2015@outlook.com>
Co-authored-by: twwu <twwu@dify.ai>
Co-authored-by: jZonG <jzongcode@gmail.com>

web/app/components/workflow/panel/debug-and-preview/empty.tsx

@@ -6,8 +6,8 @@ const Empty = () => {
 
   return (
     <div className='absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2'>
-      <div className='flex justify-center mb-2'>
-        <ChatBotSlim className='w-12 h-12 text-gray-300' />
+      <div className='mb-2 flex justify-center'>
+        <ChatBotSlim className='h-12 w-12 text-gray-300' />
       </div>
       <div className='w-[256px] text-center text-[13px] text-gray-400'>
         {t('workflow.common.previewPlaceholder')}