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

aio/content/examples/styleguide/src/05-03/app/app.component.ts

@@ -0,0 +1,7 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'sg-app',
+  templateUrl: './app.component.html'
+})
+export class AppComponent { }