chore: fix pagination for authors and site

docs/design/screens/sites.md

@@ -59,7 +59,7 @@ Route: `/settings/sites?page=2&size=50`. API: GET /v1/site/?q=&page=&size= (desi
 
 **URL.** `/settings/sites?page=2&size=50`. `page` and `size` are the parameter names (as Articles and Activity). `size` is one of 5, 25, 50, 100; default 25. Defaults are omitted from the URL (`page=1`, `size=25`). Combined with search: `/settings/sites?q=renew&page=2`. A search change or a size change resets `page` to 1 and drops it from the URL. An invalid `size` or `page` (not a positive integer) is replaced silently by the default with `history.replace`. A `page` past the last page falls back to the last page: the URL is replaced by `?page=<last>` and the info notice "That page doesn't exist. Showing the last page." is shown, as on Articles. Browser Back returns to the previous page of results.
 
-**Pager.** The same component as Articles and Media, in the same footer position (below the list, right-aligned controls, summary and page-size select on the left; mobile: summary and select on one row, then Previous, "Page X of Y", Next). Nothing new is drawn. Sizes are the sizes of the existing pattern: 5, 25, 50, 100 (default 25). API: total in `X-Total-Count`, array body unchanged. Keyboard and aria as Articles. The only difference from Articles: on a single page the page-size select is hidden too and the footer holds only the count line "N sites" (Articles keeps its summary and select). Existing frames of this screen that show a short list (the "Default" frames above) don't draw the count line yet; it appears whenever the list has loaded.
+**Pager.** The same component as Articles and Media, in the same footer position (below the list, summary on the left, page-size select next to it, right-aligned controls; mobile: summary and select on one row, then Previous, "Page X of Y", Next). Nothing new is drawn. Sizes are the sizes of the existing pattern: 5, 25, 50, 100 (default 25). API: total in `X-Total-Count`, array body unchanged. Keyboard and aria as Articles. The only difference from Articles: on a single page the page-size select is hidden too and the footer holds only the count line "N sites" (Articles keeps its summary and select). Existing frames of this screen that show a short list (the "Default" frames above) don't draw the count line yet; it appears whenever the list has loaded.
 
 **Search on Sites.** The Sites screen has no search field today. States 8 and 9 need one, so the pagination frames add the Authors field with the placeholder "Search by name or key" (name, key and base URL are matched). Treat it as a proposal; if you prefer no search on Sites, drop states 8 and 9 and the `q` parameter.