added sidebar component, added individual workspace page

src/lib/components/ui/skeleton/skeleton.svelte

@@ -0,0 +1,17 @@
+<script lang="ts">
+	import { cn, type WithElementRef, type WithoutChildren } from "$lib/utils.js";
+	import type { HTMLAttributes } from "svelte/elements";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: WithoutChildren<WithElementRef<HTMLAttributes<HTMLDivElement>>> = $props();
+</script>
+
+<div
+	bind:this={ref}
+	data-slot="skeleton"
+	class={cn("bg-accent animate-pulse rounded-md", className)}
+	{...restProps}
+></div>