Rework Notes page: balanced two columns, filter, bibliography section, drop prev/next links

layouts/zettels/single.html

@@ -0,0 +1,45 @@
+{{ define "content" -}}
+<article class="post">
+    <header class="post-header">
+        <h1 class="post-title">{{ .Title }}</h1>
+    </header>
+
+    {{- partial "post/toc.html" . -}}
+
+    <div class="post-content">
+        {{ .Content }}
+    </div>
+
+    {{- $base := .File.BaseFileName }}
+    {{- $needle := printf `/%s.md"` $base }}
+    {{- $needle2 := printf `"%s.md"` $base }}
+    {{- $refs := slice }}
+    {{- range where site.RegularPages "Section" "in" (slice "book" "article" "phdthesis" "inproceedings" "inbook" "techreport") }}
+      {{- if or (strings.Contains .RawContent (printf `relref "%s.md"` $base)) (strings.Contains .RawContent (printf `/%s.md"` $base)) }}{{ $refs = $refs | append . }}{{ end }}
+    {{- end }}
+    {{- with $refs }}
+    <section class="note-references">
+        <h2>References</h2>
+        <ul>
+            {{- range sort . "Title" }}<li><a href="{{ .RelPermalink }}">{{ .Title }}</a></li>{{ end }}
+        </ul>
+    </section>
+    {{- end }}
+
+    {{ partial "backlinks" . }}
+
+    <footer class="post-footer">
+        {{ with .Params.tags -}}
+        <div class="post-tags">
+            {{ range . -}}
+            <a href="{{ "tags" | relLangURL }}/{{ . | urlize }}/">{{ . }}</a>
+            {{ end -}}
+        </div>
+        {{- end -}}
+
+    </footer>
+</article>
+<div id="comments">
+    {{ partial "comments.html" $ }}
+</div>
+{{- end }}