Replace ReCaptcha navigation delegate with a WKUserContentController.
Move callback property closures onto the MainActor.
Show a loading indicator whilst waiting for the authentication service to start.
Move nextUncompletedStage into FlowResult.
Handle text field actions during authentication.
Remove scroll view tweaks in server selection screen following EMS banner removal.
* Implement the Signup event from AuthenticationViewController.
Use AuthenticationFlow instead of MXKAuthenticationType.
Create new AuthenticationType that aligns with AnalyticsEvent naming.
Add additional cases from AnalyticsEvents.
