chore: Clean up unused files, imports, and work on getting end-to-end tests and unit tests running (#2272)

babel.config.js

@@ -44,20 +44,3 @@ module.exports = {
     },
   },
 };
-
-// TODO: Plugins; Aliases
-// We don't currently use aliases, but this is a nice snippet that would help
-// [
-//   'module-resolver',
-//   {
-//     // https://github.com/tleunen/babel-plugin-module-resolver/issues/338
-//     // There seem to be a bug with module-resolver with a mono-repo setup:
-//     // It doesn't resolve paths correctly when using root/alias combo, so we
-//     // use this function instead.
-//     resolvePath(sourcePath, currentFile, opts) {
-//       // This will return undefined if aliases has no key for the sourcePath,
-//       // in which case module-resolver will fallback on its default behaviour.
-//       return aliases[sourcePath];
-//     },
-//   },
-// ],