Discrepancy between Retrievability Stat in Card Info vs Card Browser

[afa]

probably the same issue as described here. if so, the fix is already made

Bug: retrievability in browser doesn't match retrievability in Stats histogram

The SchedTimingToday structure that is used in graphs/retrievability.rs isn’t properly initialized before being passed to days_since_last_review(). The next_day_at element is just set to Default::default(), when it’s passed in, but it’s then used in the function. so there are likely a few differences not due to rounding between the browser and graph, but the number is probably pretty small for most people