Implement a date picker for cycle analytics
Problem to solve
Currently users cannot select a specific date for customizable cycle analytics, which means that they cannot drill down in productivity during a specific sprint since we only provide last 7, 30 days, etc as periods.
EMs, PMs, Tech leadership
With customizable stages, we will be able to scope the calculation between a date range. TODO: sync with FE about the param naming.
Permissions and Security
Same permissioning as on the overall page
What does success look like, and how can we measure that?
A user should be able to select any period for which they have data and load it within  seconds