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

aio/content/examples/styleguide/src/07-03/app/app.module.ts

@@ -0,0 +1,19 @@
+import { NgModule } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+import { RouterModule } from '@angular/router';
+
+import { AppComponent } from './app.component';
+import { HeroListComponent } from './heroes';
+
+@NgModule({
+  imports: [
+    BrowserModule,
+    RouterModule.forChild([{ path: '07-03', component: AppComponent }])
+  ],
+  declarations: [
+    AppComponent,
+    HeroListComponent
+  ],
+  exports: [ AppComponent ]
+})
+export class AppModule {}