ui: extract infinite anime list and catalog item to shared ui component

internal/shared/ui/anime_list.templ

@@ -0,0 +1,49 @@
+package ui
+
+import (
+	"fmt"
+	"mal/internal/jikan"
+)
+
+templ InfiniteAnimeList(animes []jikan.Anime, hasNext bool, nextURL string, containerID string) {
+	for _, anime := range animes {
+		<div class="catalog-item" data-id={ fmt.Sprintf("%d", anime.MalID) }>
+			@CatalogItem(anime)
+		</div>
+	}
+	if hasNext {
+		<div class="scroll-trigger" style="grid-column: 1 / -1; height: 20px;" hx-get={ nextURL } hx-trigger="revealed" hx-swap="outerHTML"></div>
+	}
+	<script>
+		(function() {
+			const containerID = "{" + containerID + "}"; // fallback for string concat in JS
+			const actualID = containerID.replace(/[{}]/g, '');
+			const container = document.getElementById(actualID) || document;
+			const items = container.querySelectorAll('.catalog-item[data-id]');
+			const seen = new Set();
+			items.forEach(item => {
+				const id = item.getAttribute('data-id');
+				if (id) {
+					if (seen.has(id)) {
+						item.remove();
+					} else {
+						seen.add(id);
+					}
+				}
+			});
+		})();
+	</script>
+}
+
+templ CatalogItem(anime jikan.Anime) {
+	<a href={ templ.URL(fmt.Sprintf("/anime/%d", anime.MalID)) }>
+		if anime.ImageURL() != "" {
+			<img src={ anime.ImageURL() } alt={ anime.DisplayTitle() } class="catalog-thumb" loading="lazy"/>
+		} else {
+			<div class="no-image">No image</div>
+		}
+	</a>
+	<div class="catalog-title">
+		{ anime.DisplayTitle() }
+	</div>
+}