Visual alert on Project Quality Summary passing a negative threshold

Release notes

Problem to solve

As a development manager reviewing project quality, I want a quick visual indicator if one of our signals passes a negative threshold, so I can quickly adjust team priorities to resolve this.

Proposal

In solution validation interviews for the Project Quality Summary users told us they wanted more context about the statistics like how they were trending and alerts if things are going wrong similar to what other monitoring and dashboard solutions would provide.

Let's give users a way to set a threshold that changes the visual treatment and/or sends an alert through Slack/Email/other to users when it is met.