feat(service-worker): expose SwRegistrationOptions token to allow runtime config (#21842)

Previously, the ServiceWorker registration options should be defined as
an object literal (in order for them to be compatible with Ahead-of-Time
compilation), thus making it impossible to base the ServiceWorker
behavior on runtime conditions.
This commit allows specifying the registration options using a regular
provider, which means that it can take advantage of the `useFactory`
option to determine the config at runtime, while still remaining
compatible with AoT compilation.

PR Close #21842

packages/service-worker/src/index.ts

@@ -15,6 +15,6 @@
 */
 
 export {UpdateActivatedEvent, UpdateAvailableEvent} from './low_level';
-export {ServiceWorkerModule} from './module';
+export {ServiceWorkerModule, SwRegistrationOptions} from './module';
 export {SwPush} from './push';
 export {SwUpdate} from './update';