Add `openWindow`, `focusLastFocusedOrOpen` and `navigateLastFocusedOrOpen` abilty to the notificationclick handler such that when either a notification or notification action is clicked the service-worker can act accordinly without the need for the app to be open
PR Close#26907
PR Close#42520
* revert: style: broken build due to missing new lines
This reverts commit ba6af2a6dd.
The commit that introduced these files (48300067f) will also get
reverted.
* revert: docs(aio): add service worker guide content and update nav (#20021)
This reverts commit 48300067fb.
This commit has some issues (e.g. breaks some e2e tests, adds images
to the wrong directories, breaks linting, etc).
Reverting in order to investigate and fix.