Chore: Grafana dashboards

[SamKr]

Apart from the example single-panel dashboard, do you have any other Grafana dashboards (or queries) available? This would avoid double work from my side, since they take a lot of time to get right.

Thanks!

[dorel14]

For the moment , i no more have a 3cx the generate data , i think i will generate some fake data to create dashboard after bug fixes