The assertions are about the navigation, not about the setting: "the
config was saved" is the plumbing, and #69 and #72 both shipped green
under specs that measured exactly that.
Four existing specs reached a view by clicking its nav item, which since
this change is not guaranteed to exist -- Autotag is hidden by default
and Downloads is absent without a download client -- so they timed out
waiting for a locator that will never resolve. `navigateTo` dispatches
the app's own `navigate` event, which is what every nav item, card and
detail view dispatches, so it is the mechanism rather than a test-only
door. Click the item when the nav is the subject.
Closes#25