add frontend code for selecting/setting the library

web/src/lib/components/ui/command/command-shortcut.svelte

@@ -0,0 +1,20 @@
+<script lang="ts">
+	import type { WithElementRef } from 'bits-ui';
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		children,
+		...restProps
+	}: WithElementRef<HTMLAttributes<HTMLSpanElement>> = $props();
+</script>
+
+<span
+	class={cn('ml-auto text-xs tracking-widest text-muted-foreground', className)}
+	{...restProps}
+	bind:this={ref}
+>
+	{@render children?.()}
+</span>