### Pull Request Checklist
<!-- Please read
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---
* **docs**: enabling of metrics in there config is needed
* **dashboard**: since the imported dashboard was created:
* many metrics was dropped by dendrite (mainly #2967)
* grafana has new version of diagrams ...
---------
Co-authored-by: Till <2353100+S7evinK@users.noreply.github.com>
[skip ci]