feat: add support for showSummary in article shortcode

layouts/shortcodes/article.html

@@ -1,10 +1,12 @@
 {{ $link := .Get "link" }}
+{{ $showSummary := .Get "showSummary" }}
 {{ $target := .Page }}
 {{ if ne $link .Page.RelPermalink }}
   {{ $target = index (first 1 (where .Site.AllPages "RelPermalink" $link)) 0 }}
 {{ end }}
 {{ if $target }}
   <section class="space-y-10 w-full">
-    {{ partial "article-link/simple.html" $target }}
+    {{ $context := dict "target" $target "showSummary" $showSummary }}
+    {{ partial "article-link/_shortcode.html" $context }}
   </section>
 {{ end }}