huge upgrade to theme and pagefind search bar.

themes/hugo-book.backup/layouts/_shortcodes/card.html

@@ -0,0 +1,20 @@
+{{- with .Get "href" -}}
+{{- $destination := partial "docs/links/portable-link" (dict "Page" $.Page "Destination" .) -}}
+<div class="book-card{{ with $.Get "class" }} {{ . }}{{ end }}"><a href="{{ $destination | safeURL }}">
+{{- template "book-card-content" $ -}}
+</a></div>
+{{- else -}}
+<div class="book-card{{ with .Get "class" }} {{ . }}{{ end }}">
+{{- template "book-card-content" $ -}}
+</div>
+{{- end -}}
+
+{{- define "book-card-content" -}}
+{{- with .Get "image" -}}
+  {{- $destination := partial "docs/links/portable-image" (dict "Page" $.Page "Destination" .) -}}
+  <img src="{{ $destination | safeURL }}" alt="{{ partial "docs/text/i18n" ($.Get "alt" ) }}" />
+  {{- end -}}
+  <div class="markdown-inner">
+{{ with .Inner }}{{ . }}{{ end -}}
+  </div>
+{{- end -}}