Description

As an Admin I want to have an easy view of the alerts that are firing in my cluster.
If I have the same alert that fires many time it is very hard to identify the issues.

We can simplify the existing Alerts page to make it much clearer by the following quick fix:

1. Aggregate the alerts by alert name and severity
2. For each aggregated line add the "Total alerts number"
3. When pressing on the aggregated line it can be expanded with the list of alerts
4.Optional - Add the namespace label to the expanded list of alerts, where each alert can have a different namespace. Note: Not all alerts have this label.

Initial mockup by fkargbo:
https://www.figma.com/proto/JlYlMG19eF8IJasy7DF4ND/Alert-Grouping-(Quick-fix)?type=design&node-id=5-136&t=Kt6eH1kzWzvjVZDE-0&scaling=min-zoom&page-id=0%3A1&starting-point-node-id=5%3A136

Acceptance Criteria

Given we have several alerts of the same name and severity

When we go to the Alerts page and view the alerts

Then We would see a single line for each "alert name" and "severity", the number of times its shown and I can click on the line to expend the line and get the full list of alerts of that name and severity.