Ability to Filter Events by Error/Warning

[owencromwell]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
During livesite looking at details of NodeDown events in the cluster events list was challenging because there was other noise from "ClusterHealthReportExpired" events and "ClusterNewHealthReport" events.

Describe the solution you'd like
A clear and concise description of what you want to happen.
Some option to filter the events list by Error/Warning levels (for Red/Yellow text in the "Type" column respectively).

Additional context
Add any other context or screenshots about the feature request here.
For example, I would like to only see Yellow events to clear out the noise from White and Green events