Present SMART status duration in more human-readable spellout format

ivan tkachenkorequested to merge
work/ratijas/spellout-duration into master

BUG: 449386

Note that this only affects the table that KDE Partition Manager presents, and not the HTML report. The other half of the fix: partitionmanager!22 (merged)

Before Before
After Partition_Manager_-_SMART_report_with_spellout_duration

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