In today's Wall Street Journal "Sightings" column, I talk about how to jump-start a post-pandemic revival of the arts in America. Here's an excerpt. *Â Â *Â Â * As everybody with even the slightest interest in the arts knows, the coming of Covid-19 has had a catastrophic effect on creative institutions in every part of America. According to Americans for the Arts, a Washington-based advocacy group, one out of…