update tracking tokens on login
extra padding in check group
fix range (e.g., 1..50) support in graphs
add extra range column to metrics
always pad y-axis
better value formatting in the graph footer (added thousands sep)
updated strftime lib to 0.8.2
use common footer text formatting when hovering or not
set upper bounds for checks which have free/used/total type metrics
schedule a range check whenever new checks are added
update check config on edit/delete
run update_check_config async in bg
update ranges on migration