refactor: split single header and meta components into partials

layouts/partials/single/post-meta/skills.html

@@ -0,0 +1,30 @@
+{{- /*
+  Displays the skills for an item.
+
+  @params pc  The page context.
+  @params skills  The item's skills
+  @params skills_ciisec_levels  The matched CIISec levels for the skills. Optional.
+  */
+-}}
+
+
+<section
+  class="article-footer__links"
+  itemprop="articleSection"
+>
+  <h3 id="item-skills-title">Skills</h3>
+  <ul>
+    {{- .pc.Scratch.Set "i" 0 -}}
+    {{- range .skills.ByTitle -}}
+      {{- if hasPrefix .LinkTitle "CIISec/" -}}
+        <li class="p-category">
+          <a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a>
+          <span class="level">(level {{ index $.skills_ciisec_levels ( $.pc.Scratch.Get "i" ) }})</span>
+        </li>
+        {{- $.pc.Scratch.Add "i" 1 -}}
+      {{- else -}}
+        <li class="p-category"><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></li>
+      {{- end -}}
+    {{- end -}}
+  </ul>
+</section>