{% comment %} Switcher across the six type-mapping object lists. The sidebar has ONE "Mappings" entry, so the lists cross-link here, rendered above the native Results/Filters tabs. Plain page links (no data-bs-toggle): every tab is the full generic list view of its model, keeping filters / bulk ops / import / export intact. `mapping_tab_active` is the current page's URL-name prefix; the active pill also carries aria-current="page" (Bootstrap's nav-pills guidance) so screen readers announce the current page. Navigation tests assert the active link's class, href, and aria-current attributes independently; attribute order is not part of that contract. {% endcomment %}