refactor: remove unused parseClassList utility

static/utils.ts

@@ -1,17 +1,3 @@
-/**
- * Parse a space-separated class list string into an array, filtering empty entries.
- */
-export const parseClassList = (value: string | null): string[] => {
-  if (!value) {
-    return [];
-  }
-
-  return value
-    .split(" ")
-    .map((entry: string): string => entry.trim())
-    .filter((entry: string): boolean => entry.length > 0);
-};
-
 export const onReady = (fn: () => void): void => {
   if (document.readyState === "loading") {
     document.addEventListener("DOMContentLoaded", fn, { once: true });