This week, the British coming-of-age drama “Heartstopper” returned to laptop screens all over the world. Based on Alice Oseman’s webcomics, the Netflix series follows a romantic relationship between two high school students, Charlie (Joe Locke) and Nick (Kit Connor), whose friendship group includes a young trans woman, Elle (Yasmin Finney), and a lesbian couple, Tara (Corinna Brown) and Darcy (Kizzy Edgell). The first season of this fizzy, feel-good show amassed 24 million hours of views in its first week, according to Netflix, and received glowing reviews from critics.