Update and rewrite the mixin dashboard to use the grafonnet ([1]) library. Grafana has deprecated angular plugins ([2]) as used by grafonnet-lib ([3]) with removal pending for grafana version 12. Additionally grafonnet-lib is deprecated/unmaintained in favor of grafonnet. Therefore the mixin dashboard has been updated to use grafonnet. [1] https://github.com/grafana/grafonnet [2] https://grafana.com/docs/grafana/latest/developers/angular_deprecation/ [3] https://github.com/grafana/grafonnet-lib Signed-off-by: Jan Horstmann <horstmann@osism.tech>
* Implements a Grafana dashboard to the mixin. The dashboard aims to show an overview of the overall health of Alertmanager. Signed-off-by: ArthurSens <arthursens2005@gmail.com>