feature: add necessary shadcn components for CategoryFilter and Sidebar

src/shared/ui/command/command-input.svelte

@@ -0,0 +1,26 @@
+<script lang="ts">
+    import { cn } from '$shared/utils/shadcn-utils.js';
+import SearchIcon from '@lucide/svelte/icons/search';
+import { Command as CommandPrimitive } from 'bits-ui';
+
+let {
+    ref = $bindable(null),
+    class: className,
+    value = $bindable(''),
+    ...restProps
+}: CommandPrimitive.InputProps = $props();
+</script>
+
+<div class="flex h-9 items-center gap-2 border-b ps-3 pe-8" data-slot="command-input-wrapper">
+    <SearchIcon class="size-4 shrink-0 opacity-50" />
+    <CommandPrimitive.Input
+        data-slot="command-input"
+        class={cn(
+            'placeholder:text-muted-foreground flex h-10 w-full rounded-md bg-transparent py-3 text-sm outline-hidden disabled:cursor-not-allowed disabled:opacity-50',
+            className,
+        )}
+        bind:ref
+        {...restProps}
+        bind:value
+    />
+</div>