fix(docs-infra): consider all formats when compiling docs examples with `ngcc` (#33206)

Previously, we would only consider the `es2015` property, but some
packages (such as `angular-in-memory-web-api`) may not have that. They
might still be compilable by `ngcc`, is they have other format
properties (e.g. `module` or `main`).

This commit fixes potential issues by considering all properties that
would be considered via the cli integration and aligns the command to
turn on ivy for docs examples with the one used in new cli apps:
https://github.com/angular/angular/blob/3e14c2d02/packages/core/schematics/migrations/postinstall-ngcc/index.ts#L22

PR Close #33206

aio/tools/examples/example-boilerplate.js

@@ -80,9 +80,7 @@ class ExampleBoilerPlate {
     }
 
     if (ivy) {
-      // We only need the "es2015" bundles as the CLI webpack build does not need
-      // any other formats for building and serving.
-      shelljs.exec(`yarn --cwd ${SHARED_PATH} ngcc --properties es2015`);
+      shelljs.exec(`yarn --cwd ${SHARED_PATH} ngcc --properties es2015 browser module main --first-only --create-ivy-entry-points`);
     }
 
     exampleFolders.forEach(exampleFolder => {