message: pass reader to createRouter, fix imports
diff: @@ -2,13 +2,10 @@ import { SingleHostDiscovery } from '@backstage/backend-common';
  import { CatalogClient } from '@backstage/catalog-client';
  import {
  CookieCutter,
  -
  -
  -
  - CreateReactAppTemplater, createRouter,
  + CreateReactAppTemplater,
  + createRouter,
  Preparers,
  Publishers,
  -
  Templaters
  } from '@backstage/plugin-scaffolder-backend';
  import Docker from 'dockerode';
  @@ -19,6 +16,7 @@ export default async function createPlugin({
  logger,
  config,
  database,
  + reader,
  }: PluginEnvironment): Promise<Router> {
  const cookiecutterTemplater = new CookieCutter();
  const craTemplater = new CreateReactAppTemplater();
  @@ -44,5 +42,6 @@ export default async function createPlugin({
  dockerClient,
  database,
  catalogClient,
  + reader
  });
  }
  