Blindness should feel like onboarding for a voyage to outer space. The Shakespeare Theatre’s first in-person presentation in over a year — and this critic’s first trip in 14 months to the interior of any theater — represents both a welcome return to the familiar, and in several senses, a bold exploration of a strange new world.Under any circumstances, the international hit sound and light installation, produced by London’s Donmar Warehouse, would promise a thrilling and disorienting ride.