fix kkFile预览提出公共方法，加水印

src/views/standardRegulationLibrary/commonPage/StandardDetailPage.vue

@@ -139,6 +139,7 @@ import { ACCESS_TOKEN } from '../../../store/mutation-types.js'
 import { downloadFile, getFileAccessHttpUrl } from '../../../api/manage.js'
 import { previewPdf } from '../../../utils/previewPdf.js'
 import { Base64 } from 'js-base64'
+import { kkFilePreview } from '../../../utils/kkFilePreview'
 
 // 国内标准权限
 const DomesticStandardPermission = {
@@ -396,8 +397,7 @@ export default {
         return
       }
       // 其余可预览文件仍使用KKFile进行预览
-      const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-      window.open(url)
+      kkFilePreview(fileFullUrl)
     },
     /**
      * 无水印下载