Calculate dashboard stats and save to db

[DJensen94]

💡 Summary

Create a new table to hold dashboard statistics. Also create a scan that will fill the table ever X minutes.

Motivation and context

This will allow us to query the pre-calculated statistics for the dashboard so we won't time out running the queries

Implementation notes

Create new dashboard-stats table in the Crossfeed db
Create scan to query the stats and save them to the table every X minutes.
Create endpoint to pull stats to be used by the frontend

Acceptance criteria

How do we know when this work is done?

• Frontend dashboard is populated from the new dashboard stats table