Bump serialize-javascript in /samples/react-project-online

Bumps [serialize-javascript](https://github.com/yahoo/serialize-javascript) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/yahoo/serialize-javascript/releases)
- [Commits](https://github.com/yahoo/serialize-javascript/compare/v3.0.0...v3.1.0)

Signed-off-by: dependabot[bot] <support@github.com>

samples/react-project-online/package-lock.json

@@ -14490,7 +14490,6 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
       "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
-      "dev": true,
       "requires": {
         "safe-buffer": "^5.1.0"
       }
@@ -15101,8 +15100,7 @@
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-      "dev": true
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
     },
     "safe-regex": {
       "version": "1.1.0",
@@ -15273,9 +15271,12 @@
       "dev": true
     },
     "serialize-javascript": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-3.0.0.tgz",
-      "integrity": "sha512-skZcHYw2vEX4bw90nAr2iTTsz6x2SrHEnfxgKYmZlvJYBEZrvbKtobJWlQ20zczKb3bsHHXXTYt48zBA7ni9cw=="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-3.1.0.tgz",
+      "integrity": "sha512-JIJT1DGiWmIKhzRsG91aS6Ze4sFUrYbltlkg2onR5OrnNM02Kl/hnY/T4FN2omvyeBbQmMJv+K4cPOpGzOTFBg==",
+      "requires": {
+        "randombytes": "^2.1.0"
+      }
     },
     "serve-index": {
       "version": "1.9.1",

samples/react-project-online/package.json

@@ -28,7 +28,7 @@
     "react": "16.8.5",
     "react-dom": "16.8.5",
     "lodash.template": ">=4.5.0",
-    "serialize-javascript": ">=2.1.1"
+    "serialize-javascript": ">=3.1.0"
   },
   "resolutions": {
     "@types/react": "16.8.8"