fix: correct API endpoints related to backup issues (#6506)

#### What type of PR is this?

/area ui
/kind bug
/milestone 2.19.x

#### What this PR does / why we need it:

修复备份相关的 API 接口地址错误的问题，此问题由 https://github.com/halo-dev/halo/pull/6486 引入，后端修改地址之后，前端没有对应修改。

#### Does this PR introduce a user-facing change?

```release-note
None
```

ui/console-src/modules/system/backup/components/BackupListItem.vue

@@ -82,7 +82,7 @@ const getFailureMessage = computed(() => {
 
 function handleDownload() {
   window.open(
-    `/apis/api.console.migration.halo.run/v1alpha1/backups/${props.backup.metadata.name}/files/${props.backup.status?.filename}`,
+    `/apis/console.api.migration.halo.run/v1alpha1/backups/${props.backup.metadata.name}/files/${props.backup.status?.filename}`,
     "_blank"
   );
 }

ui/console-src/modules/system/backup/tabs/Restore.vue

@@ -139,7 +139,7 @@ useQuery({
               maxNumberOfFiles: 1,
               allowedFileTypes: ['.zip'],
             }"
-            endpoint="/apis/api.console.migration.halo.run/v1alpha1/restorations"
+            endpoint="/apis/console.api.migration.halo.run/v1alpha1/restorations"
             width="100%"
             @uploaded="onProcessCompleted"
           />