show how much money is currently awaiting payout in the current payout cycle

[gruns]

currently, as a saturn node op, its impossible from the dashboard to tell:

1. what your earnings are for a given payout epoch, eg jan 1 at midnight to jan 31st at midnight
2. to see how much their last payout was and how many fil theyve earned since the last payout

see filecoin-saturn/L1-node#210 for a user submitted issue here

a soft solution to #1 and #2 is to add the payment epoch's to the date dropdown. that's covered in #14

an explicit solution to #2 is to add how much money is currently awaiting payout, a la

a solution like the above, by explicitly stating one's earnings since the last payout, is the best solution here. but implementing #14 is a soft fix that would help us get there in the mean time

re privacy: this doesn't leak any private payout info because all fil transfers are public: its trivial for anyone to go to head filfox and enter the same filecoin address to see someone's last payout and cross reference that with the public data on the dashboard