Results 2 issues of lipan

**What would you like to be added**: 如下图,目前夜莺的表格不支持显示time这个label,而grafana是支持的 ![image](https://user-images.githubusercontent.com/22410073/222079324-7f9dddcf-3aec-433b-adb6-142f97375dd4.png) ![image](https://user-images.githubusercontent.com/22410073/222079781-c3862649-d5c8-4835-b02e-d25777bf1e51.png) **Why is this needed**: 时序数据库的time是一个比较重要的字段,用户做监控报表经常有按照时间统计数据的需求

### Relevant server.conf | webapi.conf ```toml delta(disk_used{fstype!="UDF",ident="$ident",device="$device"}[24h]) step设置为86400,意味着1天采一个点 ``` ### Relevant logs ```text 无相关日志 ``` ### System info 5.14.3 ### Steps to reproduce 1.夜莺step设置为86400 改变时间范围 ![image](https://user-images.githubusercontent.com/22410073/222074427-c111f8a0-0dd9-40c0-ba32-018ad77c213d.png) 2.grafana step设置为86400,改变时间范围 ![1677656224895](https://user-images.githubusercontent.com/22410073/222074607-47640627-917f-4882-94ff-820d603c5bd4.jpg) ###...