tests: More updates

- `npm run test:single` runs jest with `-w 1`, makes the output readable
- adds testIds to the radio buttons, I think it's a bit bugged where if
  you click the label it'll automatically switch to the first radio button
  (even if you click the label of the 2nd button)
- moved a misplaced wait

package.json

@@ -80,6 +80,7 @@
     "server:ctr": "node src/server/generateServerKey.js",
     "start": "NODE_ENV=development webpack-dev-server --config config/dev.webpack.config.js",
     "test": "jest --verbose",
+    "test:single": "jest --verbose -w 1",
     "travis:build": "NODE_ENV=production webpack --config config/prod.webpack.config.js",
     "travis:verify": "npm-run-all travis:build lint test",
     "verify": "npm-run-all build lint test"