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

src/entities/Font/ui/FontApplicator/FontApplicator.svelte

@@ -6,7 +6,7 @@
     - Adds smooth transition when font appears
 -->
 <script lang="ts">
-import { cn } from '$shared/shadcn/utils/shadcn-utils';
+import clsx from 'clsx';
 import type { Snippet } from 'svelte';
 import { prefersReducedMotion } from 'svelte/motion';
 import {
@@ -64,7 +64,7 @@ const transitionClasses = $derived(
     style:font-family={shouldReveal
     ? `'${font.name}'`
     : 'system-ui, -apple-system, sans-serif'}
-    class={cn(
+    class={clsx(
         transitionClasses,
         // If reduced motion is on, we skip the transform/blur entirely
         !shouldReveal