refactor: remove extension from backup name

src/controllers/backup-controller.ts

@@ -65,7 +65,7 @@ export class BackupController extends Controller {
     return data.database.flatMap((a) =>
       a.type === "file"
         ? {
-            name: a.key as string,
+            name: a.key.replace(".sql.gz", "") as string,
             databaseSize: a.size as number,
             storageSize: data.bucket.find((b) => a.key.replace(".sql.gz", "") === b.prefix)
               ?.size as number,