feat: integrate Google AdSense and consolidate head elements into a new partial.

layouts/partials/head.html

@@ -0,0 +1,26 @@
+{{ partial "head/meta-tags.html" . }}
+
+{{ if .Params.canonicalUrl }}
+<link rel="canonical" href="{{ .Params.canonicalUrl }}">
+{{ else }}
+<link rel="canonical" href="{{ .Permalink }}">
+{{ end }}
+
+{{ partialCached "head/theme-styles.html" . }}
+
+{{ partialCached "head/color-scheme.html" . }}
+
+{{ partialCached "head/custom-styles.html" . }}
+
+{{ partialCached "head/custom-icons.html" . }}
+
+{{ partial "head/alternative-output-formats.html" . }}
+
+{{ if .IsHome }}{{ partial "head/hugo-generator.html" . }}{{ end }}
+
+{{ partial "head/extensions.html" . }}
+
+{{ if .Site.Params.adsense.client }}
+<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client={{ .Site.Params.adsense.client }}"
+     crossorigin="anonymous"></script>
+{{ end }}