fix: small

src/ui/BuildDeck/index.tsx

@@ -232,6 +232,7 @@ const DeckZone: React.FC<{
       value: CardMeta;
       source: "main" | "extra" | "side" | "search";
     }) => {
+      if (type === source) return;
       editDeckStore.add(type, value);
       if (source !== "search") {
         editDeckStore.remove(source, value);
@@ -293,7 +294,11 @@ const Card: React.FC<{
   });
   drag(ref);
   return (
-    <div className={styles.card} ref={ref}>
+    <div
+      className={styles.card}
+      ref={ref}
+      style={{ opacity: isDragging ? 0 : 1 }}
+    >
       <div className={styles.cardname}>{value.text.name}</div>
       <YgoCard className={styles.cardcover} code={value.id} />
     </div>