Swiper 8: loop‑mode slide duplication when slidesPerGroup exceeds 1 and slide count is uneven
Problem Context Swiper 8 introduced ES‑module distribution and required explicit registration of components such as Pagination and Navigation. A side effect of the loop‑mode refactor is that when slidesPerGroup is greater than one and the total number of slides is not a multiple of that group size, the automatic duplication of slides can leave a visual gap o