Refactor AdventureCard component and add CardCarousel

- Refactor AdventureCard component to remove unused variable and add meta tags for shared collections page
- Add CardCarousel component to display a carousel of adventure images in AdventureCard

frontend/src/lib/components/CardCarousel.svelte

@@ -0,0 +1,83 @@
+<script lang="ts">
+	import type { Adventure } from '$lib/types';
+	import ImageDisplayModal from './ImageDisplayModal.svelte';
+
+	export let adventures: Adventure[] = [];
+
+	let adventure_images: string[] = [];
+	let currentSlide = 0; // Declare as a regular variable
+
+	let adventure: Adventure | null = null;
+	let image_url: string | null = null;
+
+	adventures.forEach((adventure) => {
+		adventure_images = [...adventure_images, ...adventure.images.map((image) => image.image)];
+	});
+
+	// Reactive statement to log when currentSlide changes
+	$: console.log('Current slide:', currentSlide);
+
+	function changeSlide(direction: string) {
+		if (direction === 'next' && currentSlide < adventure_images.length - 1) {
+			currentSlide = currentSlide + 1; // Use direct assignment
+		} else if (direction === 'prev' && currentSlide > 0) {
+			currentSlide = currentSlide - 1; // Use direct assignment
+		}
+	}
+</script>
+
+{#if image_url}
+	<ImageDisplayModal image={image_url} on:close={() => (image_url = null)} />
+{/if}
+
+<figure>
+	{#if adventure_images && adventure_images.length > 0}
+		<div class="carousel w-full relative">
+			<!-- svelte-ignore a11y-click-events-have-key-events -->
+			<div class="carousel-item w-full block">
+				<!-- svelte-ignore a11y-click-events-have-key-events -->
+				<!-- svelte-ignore a11y-no-static-element-interactions -->
+				<!-- svelte-ignore a11y-missing-attribute -->
+				<a
+					on:click|stopPropagation={() => (image_url = adventure_images[currentSlide])}
+					class="cursor-pointer"
+				>
+					<img
+						src={adventure_images[currentSlide]}
+						class="w-full h-48 object-cover"
+						alt={adventure_images[currentSlide]}
+					/>
+				</a>
+
+				{#if adventure_images.length > 1}
+					<div class="absolute inset-0 flex items-center justify-between pointer-events-none">
+						{#if currentSlide > 0}
+							<button
+								on:click|stopPropagation={() => changeSlide('prev')}
+								class="btn btn-circle btn-sm ml-2 pointer-events-auto">❮</button
+							>
+						{:else}
+							<div class="w-12"></div>
+						{/if}
+
+						{#if currentSlide < adventure_images.length - 1}
+							<button
+								on:click|stopPropagation={() => changeSlide('next')}
+								class="btn btn-circle mr-2 btn-sm pointer-events-auto">❯</button
+							>
+						{:else}
+							<div class="w-12"></div>
+						{/if}
+					</div>
+				{/if}
+			</div>
+		</div>
+	{:else}
+		<!-- svelte-ignore a11y-img-redundant-alt -->
+		<img
+			src={'https://placehold.co/300?text=No%20Image%20Found&font=roboto'}
+			alt="No image available"
+			class="w-full h-48 object-cover"
+		/>
+	{/if}
+</figure>