fix close button cannot be clicked when the browser page is zoomed out (#25584)

Co-authored-by: joeyczheng <joeyczheng@tencent.com>

web/app/components/header/account-setting/index.tsx

           </div>
         </div>
         <div className='relative flex w-[824px]'>
-          <div className='absolute -right-11 top-6 z-[9999] flex flex-col items-center'>
+          <div className='fixed right-6 top-6 z-[9999] flex flex-col items-center'>
             <Button
               variant='tertiary'
               size='large'