chore: do new design mockup

src/lib/components/ui/separator/separator.svelte

@@ -0,0 +1,22 @@
+<script lang="ts">
+	import { Separator as SeparatorPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		orientation = "horizontal",
+		...restProps
+	}: SeparatorPrimitive.RootProps = $props();
+</script>
+
+<SeparatorPrimitive.Root
+	bind:ref
+	class={cn(
+		"bg-border shrink-0",
+		orientation === "horizontal" ? "h-[1px] w-full" : "min-h-full w-[1px]",
+		className
+	)}
+	{orientation}
+	{...restProps}
+/>