'The Mandalorian': What You Need to Know About Moff Gideon's Weird Sword

(This article contains all the spoilers for “Chapter 8,” the season 1 finale of the “Star Wars” TV series “The Mandalorian” on Disney Plus.) If you were confused by the very end of the first season of “The Mandalorian,” it’s probably because you didn’t know or weren’t expecting that Disney would be folding the first ever live-action “Star Wars” TV series into a sort of mini-verse with the other “Star Wars” show. Because, yeah, the final scene instead gave us the sho...