feat(docs-infra): Convert AIO to use the new Service Worker 5.0.0. (#19795)

AIO is currently using a beta version of @angular/service-worker.
Since that was implemented, the SW has been rewritten and released
as part of Angular 5.0.0. This commit updates AIO to use the latest
implementation, with an appropriate configuration file that caches
the various AIO assets in useful ways.

PR Close #19795

aio/scripts/_payload-limits.json

@@ -2,8 +2,8 @@
   "aio": {
     "master": {
       "uncompressed": {
-        "runtime": 2768,
-        "main": 475855,
+        "runtime": 2712,
+        "main": 458226,
         "polyfills": 38453,
         "prettify": 14913
       }