chore: purge shadcn from codebase. Replace with bits-ui components and other tools

src/shared/ui/Stat/Stat.svelte

@@ -3,8 +3,8 @@
     A single key:value pair in Space Mono. Optional trailing divider.
 -->
 <script lang="ts">
-import { cn } from '$shared/shadcn/utils/shadcn-utils';
 import { Label } from '$shared/ui';
+import clsx from 'clsx';
 import type { ComponentProps } from 'svelte';
 
 interface Props extends Pick<ComponentProps<typeof Label>, 'variant'> {
@@ -36,7 +36,7 @@ let {
 }: Props = $props();
 </script>
 
-<div class={cn('flex items-center gap-1', className)}>
+<div class={clsx('flex items-center gap-1', className)}>
     <Label variant="muted" size="xs">{label}:</Label>
     <Label {variant} size="xs" bold>{value}</Label>
 </div>