feat: enhance download response by exposing content disposition header

Author: hhhhsc701

backend/services/operator-market-service/src/main/java/com/datamate/operator/interfaces/rest/OperatorController.java

@@ -85,6 +85,7 @@ public ResponseEntity<Resource> downloadDatasetFileById() {
             Resource resource = operatorService.downloadExampleOperator(file);
             return ResponseEntity.ok()
                     .contentType(MediaType.APPLICATION_OCTET_STREAM)
+                    .header(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, HttpHeaders.CONTENT_DISPOSITION)
                     .header(HttpHeaders.CONTENT_DISPOSITION,
                             "attachment; filename=\"" + file.getName() + "\"")
                     .body(resource);

frontend/src/pages/OperatorMarket/Home/OperatorMarket.tsx

@@ -128,7 +128,6 @@ export default function OperatorMarketPage() {
         <div className="flex gap-2">
           {/*<TagManagement />*/}
           <Button
-            type="primary"
             icon={<DownloadOutlined />}
             onClick={handleDownload}
           >