Merge partials for head and add logic so they can be added once in baseof instead of in each single and list template.

layouts/partials/single_json_ld.html

@@ -1,38 +0,0 @@
-<script type="application/ld+json">
-  {
-    "@context": "https://schema.org",
-    "@type": {{ if or (eq .Section "blog") (eq .Section "post") }}"BlogPosting"{{ else }}"WebPage"{{ end }},
-    "headline": {{ .Title }},
-    "datePublished": {{ .Date.Format "2006-01-02T15:04:05Z07:00" }},
-    "dateModified": {{ .Lastmod.Format "2006-01-02T15:04:05Z07:00" }},
-    "url" : {{ .Permalink }},
-    "description": {{ with (.Description | default (replaceRE "\n" " " .Summary)) }}{{ . }}{{ end }},
-    {{ with $.Param "image" -}}
-    "image" : {{ . | absURL }},
-    {{ end -}}
-    {{ with .Params.tags -}}
-    "keywords": {{ . }},
-    {{ end -}}
-    {{ with $.Param "author" -}}
-    "author": {
-      "@type": "Person",
-      "name": {{ . }}
-    },
-    {{ end -}}
-    "mainEntityOfPage": {
-      "@type": "WebPage",
-      "@id": {{ .Site.BaseURL }}
-    },
-    "publisher": {
-      "@type": "Organization",
-      "name": {{ .Site.Title  }},
-      {{ with $.Param "icon" -}}
-      "logo" : {
-        "@type": "ImageObject",
-        "url": {{ . | absURL }}
-      },
-      {{ end -}}
-      "url": {{ .Site.BaseURL }}
-    }
-  }
-</script>