message: Document feature flags
diff: +/**
  + * Return a set of compile time feature flags. These values will be inlined into
  + * the code at build time, based on the version of the app being built. This
  + * will then allow Webpack/Terser to fully remove code if the feature flag is
  + * off. We build features behind these feature flags so we can easily remove
  + * them from the app, or keep them in beta/dev for a longer time without
  + * releasing to app.
  + */
  export function makeFeatureFlags(env: { release: boolean; beta: boolean; dev: boolean }) {
  return {
  // Print debug info to console about item moves
  