Tables with a header row can be sorted by clicking a column header

Listing tables on company, taxonomy and generic list pages get column headers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

layouts/term.html

@@ -3,6 +3,6 @@
 <h1>{{ .Title }}</h1>
 {{ range .Pages.GroupBy "Section" }}
 <h2>{{ with site.GetPage (printf "/%s" .Key) }}{{ .Title }}{{ end }} <small>({{ len .Pages }})</small></h2>
-{{ partial "page-list.html" .Pages.ByTitle }}
+{{ partial "page-list.html" (dict "pages" .Pages.ByTitle "head" true) }}
 {{ end }}
 {{ end }}