Fix audit vulnerabilities (#8979)

* Fix audit vulnerabilities

* Fix serialize-javascript

Author: rchiodo

package-lock.json

@@ -2841,6 +2841,7 @@
         "babel-polyfill": "^6.26.0",
         "bootstrap": "^4.3.1",
         "bootstrap-less": "^3.3.8",
+        "braces": "^3.0.2",
         "brfs": "^2.0.2",
         "canvas": "^2.6.0",
         "chai": "^4.1.2",
@@ -2907,6 +2908,7 @@
         "retyped-diff-match-patch-tsd-ambient": "^1.0.0-0",
         "rewiremock": "^3.13.0",
         "sass-loader": "^7.1.0",
+        "serialize-javascript": "^2.1.2",
         "shortid": "^2.2.8",
         "sinon": "^7.3.2",
         "source-map-support": "^0.5.12",

package.json

@@ -32,6 +32,7 @@
     "postcss-loader": "^3.0.0",
     "prettier": "^1.18.2",
     "rimraf": "^3.0.0",
+    "serialize-javascript": "^2.1.2",
     "style-loader": "^1.0.0",
     "tslint": "^5.20.0",
     "tslint-config-prettier": "^1.18.0",