Upgrade vulnerable packages

Author: sergeystoma

package.json

@@ -28,7 +28,8 @@
     "redis": "^2.8.0",
     "sanitize-html": "^1.20.1",
     "unescape": "^1.0.1",
-    "vue-masonry-css": "^1.0.3"
+    "vue-masonry-css": "^1.0.3",
+    "serialize-javascript": "2.1.1"
   },
   "devDependencies": {
     "@nuxtjs/eslint-config": "^1.0.1",