fix: revert removal of alt tag to display captions again #59

This reverts commit 338f126.
The initial "fix" prevented captions to be displayed.

layouts/partials/album-card.html

@@ -1,7 +1,7 @@
 {{ $gallery := partial "get-gallery.html" . }}
 {{ with $gallery }}
   <a class="card" href="{{ .page.RelPermalink }}" title="{{ .page.Title }}">
-    <img loading="lazy" width="{{ .thumbnail.Width }}" height="{{ .thumbnail.Height }}" src="{{ .thumbnail.RelPermalink }}" style="background-color: {{ .color }}" />
+    <img loading="lazy" width="{{ .thumbnail.Width }}" height="{{ .thumbnail.Height }}" src="{{ .thumbnail.RelPermalink }}" style="background-color: {{ .color }}" alt="{{ .page.Title }}" />
     <div>
       <h2>{{ .page.Title }}</h2>
       <p>

layouts/partials/gallery.html

@@ -26,7 +26,7 @@
       {{ $full := $image.Filter (slice images.AutoOrient (images.Process "fit 1600x1600")) }}
       {{ $color := index $thumbnail.Colors 0 | default "transparent" }}
       <a class="gallery-item" href="{{ $image.RelPermalink }}" data-pswp-src="{{ $full.RelPermalink }}" data-pswp-width="{{ $full.Width }}" data-pswp-height="{{ $full.Height }}" title="{{ .Title }}" itemscope itemtype="https://schema.org/ImageObject" style="aspect-ratio: {{ $thumbnail.Width }} / {{ $thumbnail.Height }}">
-        <img loading="lazy" width="{{ $thumbnail.Width }}" height="{{ $thumbnail.Height }}" src="{{ $thumbnail.RelPermalink }}" style="background-color: {{ $color }}" />
+        <img loading="lazy" width="{{ $thumbnail.Width }}" height="{{ $thumbnail.Height }}" src="{{ $thumbnail.RelPermalink }}" style="background-color: {{ $color }}" alt="{{ .Title }}" />
         <meta itemprop="contentUrl" content="{{ $image.RelPermalink }}" />
         {{ with site.Params.Author }}
           <span itemprop="creator" itemtype="https://schema.org/Person" itemscope>