added thumbs generation for performation and also added a new deck format for registration

app/ui-tarot-detail.js

@@ -4,6 +4,7 @@
       getMonthRefsByCardId,
       getMagickDataset,
       resolveTarotCardImage,
+      resolveTarotCardThumbnail,
       getDisplayCardName,
       buildTypeLabel,
       clearChildren,
@@ -203,9 +204,9 @@
       }
 
       const cardDisplayName = getDisplayCardName(card);
-      const imageUrl = typeof resolveTarotCardImage === "function"
-        ? resolveTarotCardImage(card.name)
-        : null;
+      const imageUrl = typeof resolveTarotCardThumbnail === "function"
+        ? resolveTarotCardThumbnail(card.name)
+        : (typeof resolveTarotCardImage === "function" ? resolveTarotCardImage(card.name) : null);
 
       if (elements.tarotDetailImageEl) {
         if (imageUrl) {
@@ -214,6 +215,7 @@
           elements.tarotDetailImageEl.style.display = "block";
           elements.tarotDetailImageEl.style.cursor = "zoom-in";
           elements.tarotDetailImageEl.title = "Click to enlarge";
+          elements.tarotDetailImageEl.decoding = "async";
         } else {
           elements.tarotDetailImageEl.removeAttribute("src");
           elements.tarotDetailImageEl.alt = "";