feat: replace clsx with cn util

src/widgets/FontSearch/ui/FontSearchSection/FontSearchSection.svelte

@@ -5,8 +5,8 @@
 <script lang="ts">
 import { NavigationWrapper } from '$entities/Breadcrumb';
 import type { ResponsiveManager } from '$shared/lib';
+import { cn } from '$shared/lib';
 import { Section } from '$shared/ui';
-import clsx from 'clsx';
 import {
     getContext,
     untrack,
@@ -38,7 +38,7 @@ $effect(() => {
             headerAction={registerAction}
         >
             {#snippet content({ className })}
-                <div class={clsx(className, !responsive.isDesktopLarge && 'col-start-0 col-span-2')}>
+                <div class={cn(className, !responsive.isDesktopLarge && 'col-start-0 col-span-2')}>
                     <FontSearch bind:showFilters={isExpanded} />
                 </div>
             {/snippet}