- seoFirstPageRedirect answers the unnumbered URL or null when the target
is the URL itself, so /mapa-strony/<group>/strona/1 no longer loops (L4 WR-01)
- SeoHtmlSitemapPage takes the segment from the site answer, else the build
option, else the param, and redirects only when the helper answers a target
- <SeoPagination> (UI-SPEC L2): previous and next (left out at the
ends), page 1, the last page and five pages around the current one with
gap items; nothing when last <= 1; props current, last, labels,
classPrefix, locale
- usePagination(): hrefs in the CMS form (resolve answer, then site
answer, then seo.pagination), other query parameters kept, page 1
unnumbered, <link rel=prev/next> in the head
- the CMS head fills %pages% in the title and description once the
listing's page count is known (seoFillPages)
- seoPaginationWindow, seoPageHref, seoPageNumber; L2 default styles
