Fix app build

This commit simply ensures that "this.createTimeout" is replaced by "exports.createTimeout" in the
node-retry package.

This is so that we implement this PR: tim-kos/node-retry#85 before node-retry is
officially updated.

Author: moshthepitt

package.json

@@ -21,7 +21,7 @@
     ],
     "scripts": {
         "clean": "shx rm -rf dist .parcel-cache",
-        "build": "yarn clean && parcel build src/index.html",
+        "build": "find -name retry.js -type f -exec sed -i -e 's/this.createTimeout/exports.createTimeout/g' {} \\; && yarn clean && parcel build src/index.html",
         "start": "yarn clean && parcel src/index.html",
         "fmt": "prettier --write '{*,**/*}.{js,ts,jsx,tsx,json}'",
         "lint": "eslint . && prettier --check '{*,**/*}.{js,ts,jsx,tsx,json}'",