refactor: clean class (#26879)

web/src/lib/components/LoadingDots.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+  import { cleanClass } from '$lib';
   import type { ClassValue } from 'svelte/elements';
 
   interface Props {
@@ -8,7 +9,7 @@
   let { class: className }: Props = $props();
 </script>
 
-<div class="delayed inline-flex items-center gap-1 {className}">
+<div class={cleanClass('delayed inline-flex items-center gap-1', className)}>
   {#each [0, 1, 2] as i (i)}
     <span class="dot block size-1.5 rounded-full bg-white shadow-[0_0_3px_rgba(0,0,0,0.6)]" style:--delay="{i * 0.25}s"
     ></span>