Add preference name to session card

[jithware]

If a preference name is defined and currently being used, add the preference name to the session card upon completion (between the date/time and duration/breaths)

[jithware]

In Release version >= 1.8.6+140 available now on Google Play

Waiting for the completion of 377#note_3049386401 to release to F-droid

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[jithware]

See note in release 1.8.6+140