HL-5905SCP正式环境，供应商发票申请，记录，价差数据查看。发票附件与合同附件增加预览功能

src/views/wms/supplierManage/supplierinvoice/supplierinvoiceRequestMain/index.vue

@@ -920,6 +920,7 @@ const detailAnnexTable = ref([
     tableName: 'contract',
     hiddenDelete: false,
     showPreview: true,
+    showDownload:true,
     hiddenUpload: false,
     fileSize: 20
   },
@@ -930,6 +931,7 @@ const detailAnnexTable = ref([
     hiddenDelete: false,
     hiddenUpload: false,
     showPreview: true,
+    showDownload:true,
     fileSize: 20,
     fileType:['pdf']
   },