Also corrects what the 17s actually is: the RealApp collection's one-time fixture (WPF App + XAML
resources + audio/WebView2 startup) charged to whichever UI test runs first — ZoomBoxInteractionTests
measures 1.1s beside other UI tests and 17.1s when it happens to be first. Nothing to trim in the
test; the lever would be App startup cost.
Full suite on the current tree: 575 passed, 0 failed, 1m47s, clean build.