feat: label the min, avg, max on the dashboad ping chart and make them selectable

[cyril59310]

ℹ️ To keep reviews fast and effective, please make sure you’ve read our pull request guidelines

📝 Summary of changes done and why they are done

• I improved the UX to make the chart more clear and added the ability to show or hide each line: minPing, maxPing, and avgPing

📋 Related issues

• Relates to Better UX explainng what the max, min, avg in the dashboard diagrams are #6572
• Resolves Better UX explainng what the max, min, avg in the dashboard diagrams are #6572

📄 Checklist

Please follow this checklist to avoid unnecessary back and forth (click to expand)

• ⚠️ If there are Breaking change (a fix or feature that alters existing functionality in a way that could cause issues) I have called them out
• 🔍 My code adheres to the style guidelines of this project.
• 🦿 I have indicated where (if any) I used an LLM for the contributions
• ✅ I ran ESLint and other code linters for modified files.
• ⚠️ My changes generate no new warnings.
• 🛠️ I have reviewed and tested my code.
• 📝 I have commented my code, especially in hard-to-understand areas (e.g., using JSDoc for methods).
• 🤖 My code needed automated testing. I have added them (this is an optional task).
• 📄 Documentation updates are included (if applicable).
• 🔒 I have considered potential security impacts and mitigated risks.
• 🧰 Dependency updates are listed and explained.

📷 Screenshots or Visual Changes

• UI Modifications: Highlight any changes made to the user interface.
• Before & After: Include screenshots or comparisons (if applicable).

[CommanderStorm]

Works nicely.
Can we include the new text in the on-hover label too while we are at it?
That label is currently just the time.

If not, also fine

[CommanderStorm]

I think if we adjust the line below this comment, we even get the new Legent to be incuded in the label 🤔

This way, we fix 100% of the issue and not just 95% of it.
I have not looked into if this is difficult (=what is included in context), but if it is not we should do it.

[cyril59310]

An addition I also wanted to make, but had forgotten, has now been implemented

[CommanderStorm]

thank you ❤️