Is your feature request related to a problem? Please describe.
Not related to a problem. New dashboard request.

Describe the solution you'd like
The current Code Scanning dashboard shows the "time to remediation" column for fixed alerts. It would be nice to have a dashboard that tracks the overall MTTR for Code Scanning alerts.

There are a few requirements:

• Sort and filter by repo, org, and code scanning tool
• Show a trend of the MTTR over time