improve display of times/durations in copr web

[juhp]

It seems any duration >= 60min and <= 1h59m may be displayed as "an hour" in copr web UI.
Which can be quite misleading/confusing sometimes.

eg One of my builds just went from 50min to 90min, so copr now says it took "an hour".

Another example, a build started just over 2 hours ago was displayed as:

Submitted:
    2025-02-03 09:12 UTC (2 hours ago) 
Started:
    2025-02-03 09:13 UTC (an hour ago) 

which doesn't really make sense.

A simple suggestion would be at least show minutes up to 2 hours, though I would prefer always to see hours and minutes 2h 15m.
Failing that, at the very least there should be rounding to the nearest hour.

[nikromen]

this is the intended behaviour of humanize.naturaldelta which we use to display the timestamp delta to users. I personally don't care that much about this one, but I'd like to avoid displaying seconds in the "human" format if delta > 60 so the time ago in the UI is not bloated

we can do something like this instead...

>>> humanize.precisedelta(5000, minimum_unit="minutes", format="%.0f")
'1 hour and 23 minutes'

[praiskup]

As discussed on Matrix, PR are very welcome! Thanks for the help.