Should be mostly working, doing some additional QOL

fictionarchive-web-astro/src/lib/components/ui/navigation-menu/navigation-menu-viewport.svelte

@@ -0,0 +1,22 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.ViewportProps = $props();
+</script>
+
+<div class={cn("absolute start-0 top-full isolate z-50 flex justify-center")}>
+	<NavigationMenuPrimitive.Viewport
+		bind:ref
+		data-slot="navigation-menu-viewport"
+		class={cn(
+			"origin-top-center bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-90 relative mt-1.5 h-[var(--bits-navigation-menu-viewport-height)] w-full overflow-hidden rounded-md border shadow md:w-[var(--bits-navigation-menu-viewport-width)]",
+			className
+		)}
+		{...restProps}
+	/>
+</div>