Aggregate Errors from Error Tracking
Building on top of the MVC of error tracking (#5686), we should expand support to include aggregation of similar errors.
This is a key capability, as otherwise frequently logged errors could quickly overload the error tracking system and larger issue board of GitLab. This is not only a UX problem, but until the system can understand and aggregate errors it also won't be able to determine other key attributes:
- How often an error occurs
- If an error is new (they all are new!)
- If an error has been resolved
- and more.