UBP Free tier usage page should match the Balance Used period in personal billing settings

[jldec]

This is a followup to #14363

Both the usage page and the balance used indicator should show the actual period for total credits used since the last reset.

See #14363 (comment) for details.

[jankeromnes]

Didn't we decide that the Usage page should be completely unrelated to any billing cycle?

I remember us reaching a conclusion akin to:

• Billing page should reflect your exact current billing cycle usage

• Usage page should show your latest Usage, independently of any cycles, and e.g. allow you to see "last 24h", "last 7 days", "last 30 days", etc

Cc @easyCZ as I think you originally advocated for the uncoupled Usage page periods.

[svenefftinge]

I think it would be useful to default to the current billing cycle and then allow users to flexibly pick any other range.