Support BiDi

[goosewobbler]

BiDi is used by default in WDIO v9 -- currently, the service is setting the wdio:enforceWebdriverClassic capability to disable it. E2Es fail if BiDi is enabled, the app is displayed but there is a lag displaying the window content - it seems to be rendered after the tests have already failed.

This issue may have a follow-up in which we address accessing the Electron APIs using BiDi, depending on the outcome of #308 (currently working on a solution using CDP).

Ideally the service would use BiDi if WDIO is configured to do so; we can read capabilities to determine if BiDi will be enabled, and make adjustments to the service accordingly.

https://webdriver.io/docs/api/webdriverBidi/
https://webdriver.io/docs/capabilities/#wdioenforcewebdriverclassic

[goosewobbler]

Possibly blocked on Chromedriver: webdriverio/webdriverio#13444 (comment)

As far as the bridge replacement goes, I think we concentrate on the CDP route for now, and re-evaluate BiDi later.