Fix rendering issue with images in an alert box

Author: Yiyun333

layouts/shortcodes/figure.html

@@ -1,9 +1,11 @@
 {{ $src := (.Page.Resources.GetMatch (printf "**%s*" (.Get "src"))) }}
 <figure>
-    <!-- Yiyun - only adds on-click link to images that have a link parameter, default target is in new tab/window -->
+    <!-- Yiyun - only adds clickable links to images that have a link parameter, default target is in new tab/window -->
     {{- if .Get "link" -}}
-        <a href="{{ .Get "link" }}" target="{{ with .Get "target" }}{{ . }}{{ else }}_blank{{ end }}"{{ with .Get "rel" }} rel="{{ . }}"{{ end }}>
-    {{- end }}
+        <a href="{{ .Get "link" }}"
+    {{- else -}}
+        <link href="{{ .Get "src" }}"
+    {{- end }} target="{{ with .Get "target" }}{{ . }}{{ else }}_blank{{ end }}"{{ with .Get "rel" }} rel="{{ . }}"{{ end }}>
     <img src="{{ if $src }}{{ $src.RelPermalink }}{{ else }}{{ .Get "src" }}{{ end }}" 
          {{- if or (.Get "alt") (.Get "caption") }}
          alt="{{ with .Get "alt" }}{{ . }}{{ else }}{{ .Get "caption" | markdownify| plainify }}{{ end }}"