It helps to be a hockey romance show coming out on streaming services in the wake of “Heated Rivalry.” Prime Video has gone all out for the release of the new series “Off Campus,” and the cast recently flew down to Brazil for several days of press. “We’ve just been drinking a lot of coconut water today,” the show’s lead Ella Bright says. “That’s the vibe.” The 19-year-old British actress stars as Hannah in the latest BookTok (the community on TikTok centered around books) sensation series adaptation, which is based on the 2015 book “The Deal” by Elle Kennedy.…