Run 33803 still reported the layer toggles disabled after a real
waitUntilEnabled: on macOS 12 the identifier lands on the Toggle's
container element, which never reports isEnabled — combine the
Toggle's children so the a11y leaf is the checkbox itself (checkbox
style unchanged). testPrinttargFixtureGalleryAndStubbedPrint flaked
once on the same runner: wait for btnCreateLayout enabled before
clicking and retry once when the gallery never materialises.
Refs #147#149#146
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