Add summary contribution charts over time to contribution analytics
Problem to solve
Contribution Analytics has the potential to tell us more about contribution patterns. We want to get to individual insights, but a manager might want to see a high-level overview of the group's activity to understand whether or not overall contribution activity is slowing down or accelerating.
In Contribution Analytics, we should add a high-level overview of contribution activity over time:
The wireframe reflects a tab design, but we should be able to switch between looking at different forms of contribution activity.
- Net LOC (additions - subtractions).
- The graphs for these should show additions/subtractions and how that's changed over time.
Timeframe for this page can be fixed to 2 weeks in our first iteration to limit scope, but we'll want to be able to change the timeframe later.