Show Archived Cards with due dates as events (with a greyed-out title) in Nextcloud calendar

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Is your feature request related to a problem? Please describe.
I would like to easily reference completed (archived) Deck cards that have due dates on the Nextcloud calendar. Current/Active (not archived) cards show up on the Nextcloud calendar; it would be helpful to see the completed (archived) cards on the calendar as well.

Describe the solution you'd like
If a card is assigned to me, and has a due date in the past, and has been "archived", I'd like to see the card with a greyed out title on the Nextcloud Calendar. Archived Cards would show up the same a Active (non-archived) cards; only the archived cards would have a greyed-out title.

Additional context
I thought this functionality already existed, but I am unable to find evidence of that

No file or test is named in the issue. Start by locating the existing path that exposes active Deck cards to Nextcloud Calendar, then trace how archived status, due dates, assignees, and titles are handled. Done means qualifying archived cards appear as calendar events with their titles visually greyed out.