add pdf-worker.js

backend/resources/js/pages/PDFView.jsx

@@ -1,6 +1,5 @@
 import React, {useEffect, useState} from 'react';
 import ReactDOM from 'react-dom';
-import { MobilePDFReader, PDFReader } from 'react-read-pdf';
 
 import { SpecialZoomLevel, Viewer, Worker } from '@react-pdf-viewer/core';
 import { defaultLayoutPlugin } from '@react-pdf-viewer/default-layout';
@@ -41,7 +40,7 @@ const PDFViewer = () => {
     }, []);
 
     return (
-        <Worker workerUrl="https://unpkg.com/pdfjs-dist@2.11.338/build/pdf.worker.js">
+        <Worker workerUrl="/js/pdf.worker.js">
             <div
                 style={{
                     height: '100vh',