This is a follow-up to #35049 with a few minor fixes related to using
the browser provided by `puppeteer` to run tests. Included fixes:
- Make the `webdriver-manager-update.js` really portable. (Previously,
it needed to be run from the directory that contained the
`node_modules/` directory. Now, it can be executed from a subdirectory
and will correctly resolve dependencies.)
- Use the `puppeteer`-based setup in AIO unit and e2e tests to ensure
that the downloaded ChromeDriver version matches the browser version
used in tests.
- Use the `puppeteer`-based setup in the `aio_monitoring_stable` CI job
(as happens with `aio_monitoring_next`).
- Use the [recommended way][1] of getting the browser port when using
`puppeteer` with `lighthouse` and avoid hard-coding the remote
debugging port (to be able to handle multiple instances running
concurrently).
[1]: https://github.com/GoogleChrome/lighthouse/blame/51df179a0/docs/puppeteer.md#L49
PR Close#35381
This commit also changes the config files and their layout to
(reasonably closely) match what the cli would generate for a new app.
Related Jira issue: [TOOL-815](https://angular-team.atlassian.net/browse/TOOL-815)
PR Close#29926