wip
[#66089832, #65661986] Added overmind stats
[#66089832] fix how serice is chosen
[#65661986] add to stats list and identify as 'rate'
local_stats cant be manually editted
cant manually store local_stats
[#65661956] add stat, pending calculation
[#65661956] calculate swasthya dropout rate
[#65661956] spec that SchoolMonthlyStat uses local_stat
spec
filter out teacher stats
[#65661986, #65661956] 'calculate' button
service blank wont raise exception
[#66089832] cast ref_date to end of month
[#67180682] change auto sync tasks -- ACTION NEEDED IN SERVER
change order of stats, bring students count first
Don't call is_a_rate? in ReducedStat

avoids this exception:

https://appsignal.com/app6692289/sites/530f958588fe90cdbc000012/web/exceptions/MonthlyStatsController-global/ActionView::Template::Error
add swasthya and ini dropout rate to ranking
add rake task for admin
Merge remote-tracking branch 'origin/master' into 66714024-download-ranking-csv