advanced graph page

[mpdehaan]

we used to have a lot of interesting scatter plots that were hard to explain that I replaced in favor of graphs over time

The scatter plots are still useful to "fingerprint" a repo, so we should consider moving the graphs page to have two tabs, with one being an advanced tab.

Or maybe even three tabs - the existing mode, totals (over time), and advanced

[mpdehaan]

the idea of exploring the relationship between any two arbitrary statistics is useful, so this may also be a place where we could (maybe instead?) have the ability to scatter plot any two axes or graph anything on a time axis?