Make images on board pages clickable

Author: ThomasGravekamp

_includes/board-content.html

@@ -301,7 +301,7 @@ <h2>Pictures</h2>
             <div class="board-item-content">
                 {% for picture in pictures %}
                 <figure>
-                    <img src="{{ site.url }}/assets/img/boards/{{ picture['file'] }}" alt="{{ board['name'] }}: {{ picture['name'] }}" loading="lazy">
+                    <a href="{{ site.url }}/assets/img/boards/{{ picture['file'] }}"><img src="{{ site.url }}/assets/img/boards/{{ picture['file'] }}" alt="{{ board['name'] }}: {{ picture['name'] }}" loading="lazy"></a>
                     <figcaption>{{ board['name'] }}: {{ picture['name'] }}</figcaption>
                 </figure>
                 {% endfor %}