update: 添加xss依赖

APP/package.json.ftl

@@ -47,6 +47,7 @@ TARGET=PSSYSAPP
     "vue-i18n": "^8.23.0",
     "vue-property-decorator": "^9.1.2",
     "vue-router": "^3.1.3",
+    "xss": "^1.0.15",
     "vuex": "^3.1.2",
   <#if app.getAllPSAppPkgs?? && app.getAllPSAppPkgs()??>
   <#list app.getAllPSAppPkgs() as appPackage>