insights: default to 90d display; improve handling of forked/archived repos (!18519) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge sg/insights-final-polish into main Feb 20, 2021

Created by: slimsag

Default to showing the last 90d of data, this is a better display of data points now that we aggregated to 12h.
Improve handling of forked/archived repo searches.