Recover standard alert templates of the alert manager and enable grouping
And silencing.
This will require reviewing the whole configuration of the alert manager and it will also require rewriting the alerts so they have static titles and descriptions.
We should also review the channels of the alert manager to allow alerting to specific channels only. For example, alerts that only go to gitaly, or CI, or build, or development. So we avoid polluting the general alerts channel.
Edited by username-removed-274314