feat: add lazy loading to character images in CharacterSearchInput component

src/lib/components/CharacterSearchInput.svelte

@@ -130,6 +130,7 @@
 								<img
 									src={character.pictureUrl}
 									alt={character.name}
+									loading="lazy"
 									class="w-12 h-12 rounded-full object-cover border border-amber-200/30"
 								/>
 							{:else}