docs(aio): rename cb- files and a few others

aio/content/examples/i18n/src/main.ts

@@ -0,0 +1,10 @@
+// #docregion
+import { platformBrowserDynamic }  from '@angular/platform-browser-dynamic';
+import { getTranslationProviders } from './app/i18n-providers';
+
+import { AppModule } from './app/app.module';
+
+getTranslationProviders().then(providers => {
+  const options = { providers };
+  platformBrowserDynamic().bootstrapModule(AppModule, options);
+});