“Andor,” the two-season prequel to “Rogue One,” has finished. With last week’s finale, the second season and the series are now complete. Let’s discuss both seasons and the series as a whole here – and there’ll be a “Rogue One” discussion thread this Wednesday, for all of us who want to re-watch that film now that we’ve reached the end of this show and the point where “Rogue One” began.