Fix: use local pdf worker js (#6990)

src-ui/src/app/app.component.ts

@@ -35,6 +35,8 @@ export class AppComponent implements OnInit, OnDestroy {
     private permissionsService: PermissionsService,
     private hotKeyService: HotKeyService
   ) {
+    let anyWindow = window as any
+    anyWindow.pdfWorkerSrc = 'assets/js/pdf.worker.min.js'
     this.settings.updateAppearanceSettings()
   }