We’re now midway through the five-movie “Fantastic Beasts” series, a sort of prequel/cousin to the Harry Potter world created by J.K. Rowling, and the most enthusiasm I can muster is that it’s all lovely to look at. Set in a magical version of the 1930s, David Yates’ “Fantastic Beasts: The Secrets of Dumbledore” is full of glorious coats (Colleen Atwood’s costumes are, as always, perfection) and snow-covered landscapes and cozy train cars. And the magic, a lovely supporting character in the story, provides perpetual delight: teapots pouring themselves, fantastical creatures such as a bird that puffs up like a balloon, people appearing and disappearing with the dramatic flick of a wand.