Arenal production settings

src/environments/environment.dev.ts

-// This file can be replaced during build by using the `fileReplacements` array.
-// `ng build --prod` replaces `environment.ts` with `environment.prod.ts`.
-// The list of file replacements can be found in `angular.json`.
-
 export const environment = {
   production: false,
   backend: 'http://localhost:8001/'
 };
-
 /*
  * For easier debugging in development mode, you can import the following file
  * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
@@ -14,4 +9,4 @@ export const environment = {
  * This import should be commented out in production mode because it will have a negative impact
  * on performance if an error is thrown.
  */
-import 'zone.js/plugins/zone-error';  // Included with Angular CLI.
+import 'zone.js/plugins/zone-error';