Updates the angular.io landing page with new messaging
and new images. The Quick-start app has been updated
to demonstrate a minimalist Angular app and the value
proposition content has been updated.
PR Close#47047
Fixes that the "Loved by millions" graphic doesn't look correctly on Safari.
Note that this fix is somewhat repetitive, but I couldn't find a better one. These are the other things I tried:
* Setting units on the size of `#angular-logo`.
* Setting the size of `#angular-logo` inside the `style` tag.
* Setting the size with inline styles.
Fixes#43498.
PR Close#43502
As of b9fead7f8, the image is referenced in `announcements.json`, but it
was already removed (as it wasn't used at the time) in 7f905da33.
PR Close#29902
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
Bob Watson