fix(aliyundrive_open): use safe disk usage calculation (#1510)

Author: NewbieOrange

drivers/aliyundrive_open/driver.go

@@ -299,10 +299,7 @@ func (d *AliyundriveOpen) GetDetails(ctx context.Context) (*model.StorageDetails
 	total := utils.Json.Get(res, "personal_space_info", "total_size").ToUint64()
 	used := utils.Json.Get(res, "personal_space_info", "used_size").ToUint64()
 	return &model.StorageDetails{
-		DiskUsage: model.DiskUsage{
-			TotalSpace: total,
-			FreeSpace:  total - used,
-		},
+		DiskUsage: driver.DiskUsageFromUsedAndTotal(used, total),
 	}, nil
 }