New feature report || be able to test upstream latency real-time within adguardhome

### Prerequisites

- [x] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions) and found no answer

- [x] I have searched other issues and found no duplicates

- [x] I want to request a feature or enhancement and not ask a question

### The problem

Would like to request for check upstream ping across top3 list and select the min latency as the upstream.
Also if new dashboard can be available? With Guages or new look to customize colors and ui tweaks

### Proposed solution

.

### Alternatives considered and additional information

_No response_