The query changes we did while fixing the usage graph led to wrong
payout calculations directly linked to disk space.
This change:
- avoids converting from Bh to B directly in the query
- returns the at_rest_total in the original bytes*hour value
- returns at_rest_total_bytes as the calculated disk spaced used in bytes
- uses the at_rest_total_bytes only for the disk space graph
- return summary_bytes as the average disk space used within the specified date
- updates the disk space graph header to "average disk space used this month"
The total disk used in the month is also displayed in B not B*day
Resolves https://github.com/storj/storj/issues/5355
Change-Id: I2cfefb0fe711f9c59de2adb547c4ab50b05c7cbb
