[FEAT]: Better drilldown results for users

[varunp2k]

Tell us about the problem you're trying to solve

• Chaos Genius currently shows the top 10 dimensions based on severity.
• Issue here is we are sorting directly based on the severity of an anomaly which causes at times anomalies in irrelevant subdimensions to showup in our drill downs.
• Need to add flexibility for the users as to what dimensions to display.

Current Implementation

CG currently shows the top 10 dimensions based on severity

• For Daily: Order by severity score based on last date in db. We consider only those dimensions that have an anomaly on the last date.
• For Hourly: Take the last 24 hour window, order by peak severity in the window.

Proposed Solution

Sort by count impact of subdimension on overall KPI.