fix download filename

vue/src/util/file.ts

@@ -56,8 +56,14 @@ export function downloadFiles(urls: string[]) {
   document.body.appendChild(link);
 
   urls.forEach((url) => {
+    const urlObject = new URL(url, window.location.origin)
+    let filename = ''
+    const disposition = urlObject.searchParams.get('disposition')
+    if (disposition) {
+      filename = disposition
+    }
     link.href = url;
-    link.download = ''
+    link.download = filename;
     link.click();
   });