fix: responsiveness of title buttons on mobile devices

src/lib/components/dashboard/WishlistGrid.svelte

@@ -46,13 +46,15 @@
 
 <Card>
 	<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>{title}</CardTitle>
 				<CardDescription>{description}</CardDescription>
 			</div>
 			{#if headerAction}
-				{@render headerAction()}
+				<div class="flex-shrink-0">
+					{@render headerAction()}
+				</div>
 			{/if}
 		</div>
 		{#if searchBar}