fix: background carousel not focusing right child initially

Author: aleksilassila

src/lib/components/GlobalBackground/BackgroundCard.svelte

@@ -4,4 +4,4 @@
 	export let backdropUrl: string;
 </script>
 
-<Card {backdropUrl} orientation="landscape" size="sm" on:click on:clickOrSelect on:enter />
+<Card {...$$restProps} {backdropUrl} orientation="landscape" size="sm" on:click on:clickOrSelect on:enter />

src/lib/components/GlobalBackground/BackgroundCarousel.svelte

@@ -27,6 +27,7 @@
 >
 	{#each backgrounds as background, index}
 		<BackgroundCard
+			focusedChild={focusIndex === index}
 			backdropUrl={background.backdropUrl}
 			on:clickOrSelect={({ detail }) => {
 				dispatch('jumpTo', index);