fix: button (#5470)

web/app/components/share/chatbot/value-panel/index.tsx

@@ -60,14 +60,12 @@ export const VarOpBtnGroup: FC<{ className?: string; onConfirm: () => void; onCa
   return (
     <div className={cn(className, 'flex mt-3 space-x-2 mobile:ml-0 tablet:ml-[128px] text-sm')}>
       <Button
-        className='text-sm'
         variant='primary'
         onClick={onConfirm}
       >
         {t('common.operation.save')}
       </Button>
       <Button
-        className='text-sm'
         onClick={onCancel}
       >
         {t('common.operation.cancel')}