fixing the ps export path

src/app/(main)/ps/page.tsx

@@ -104,7 +104,7 @@ export default function ProductionSchedulePage() {
   const handleExport = async () => {
     const token = localStorage.getItem("accessToken");
     try {
-      const response = await fetch(`${NEXT_PUBLIC_API_URL}/ps/export-prod-schedule`, {
+      const response = await fetch(`${NEXT_PUBLIC_API_URL}/productionSchedule/export-prod-schedule`, {
         method: 'POST',
         headers: { 'Authorization': `Bearer ${token}` }
       });