fix: responsiveness of title buttons on mobile devices

src/routes/+page.svelte

@@ -46,14 +46,14 @@
 <div class="min-h-screen flex items-center justify-center p-4">
 	<Card class="w-full max-w-lg">
 		<CardHeader>
-			<div class="flex items-center justify-between">
-				<div>
+			<div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
+				<div class="flex-1 min-w-0">
 					<CardTitle class="text-3xl">{t.wishlist.createTitle}</CardTitle>
 					<CardDescription>
 						{t.wishlist.createDescription}
 					</CardDescription>
 				</div>
-				<div class="flex items-center gap-1 sm:gap-2">
+				<div class="flex items-center gap-1 sm:gap-2 flex-shrink-0">
 					<LanguageToggle />
 					<ThemeToggle />
 					{#if data.session?.user}