Refactor EnableBlackWhiteList method to use Model update for status change

- Update the database operation in the EnableBlackWhiteList method to use Model and Where clauses for a more precise status update.
- Improve the clarity and efficiency of the database interaction within the WAF service.

internal/service/waf.go

@@ -1152,7 +1152,7 @@ func (s *wafService) EnableBlackWhiteList(ctx context.Context, req *MatcherExpr)
 			}
 		}
 	}
-	err = s.db.WithContext(ctx).Save(&matcherExpr).Error
+	err = s.db.WithContext(ctx).Model(&model.MatcherExpr{}).Where("id = ?", req.ID).Update("status", req.Status).Error
 	if err != nil {
 		return err
 	}