Enable redux dev tools and refactor http requests

app/javascript/helpers/buildRequestHeaders.ts

@@ -0,0 +1,7 @@
+const buildRequestHeaders = (authenticityToken: string) => ({
+  Accept: 'application/json',
+  'Content-Type': 'application/json',
+  'X-CSRF-Token': authenticityToken,
+});
+
+export default buildRequestHeaders;