A lot of small changes improving keyboard navigation, readability and accesibility

layouts/_shortcodes/card.html

@@ -12,7 +12,7 @@
 {{- define "book-card-content" -}}
 {{- with .Get "image" -}}
   {{- $destination := partial "docs/links/portable-image" (dict "Page" $.Page "Destination" .) -}}
-  <img src="{{ $destination | safeURL }}" />
+  <img src="{{ $destination | safeURL }}" alt="{{ partial "docs/text/i18n" ($.Get "alt" ) }}" />
   {{- end -}}
   <div class="markdown-inner">
 {{ with .Inner }}{{ . }}{{ end -}}

layouts/_shortcodes/i18n.html

@@ -1,2 +1 @@
-{{- $content := .Get 0 -}}
-{{- default $content (i18n $content) -}}
+{{- partial "docs/text/i18n" (.Get 0) -}}

layouts/_shortcodes/section.html

@@ -6,7 +6,7 @@
   </dt>
   {{ if (in $.Params "summary") -}}
   <dd class="markdown-inner">
-    {{ default .Summary .Description }}
+    {{- or .Description .Summary site.Params.description | plainify | htmlUnescape }}
   </dd>
   {{ end -}}
 {{ end }}