[FEATURE REQUEST] Document/card archive

Is your feature request related to a problem? Please describe.
A type of cards that I frequently add to OSS card wallet is a gift card. These have limited usage (e.g. $30). When I see in the store that the card's balance is insufficient for my next purchase I currently would just delete that card (so that it doesn't Intermix with those that are still valid). However, sometimes the store would let me combine leftover balances of multiple cards for a new purchase. Thus, permanent card deletion does not really make sense in this case. Thus, I would currently still leave the card in the app and it would clutter the UI.

Describe the solution you'd like
I propose adding "card archive". A card can be archived (a bool flag) and unarchived. If a card is archived - it's not shown in the main app view. It is only accessible in the special "Archived cards" view.

Describe alternatives you've considered
I guess I could create a separate folder for archived cards, but the mental model is a bit different there

Additional context
Many other card wallet apps have archival feature so I though it might be interesting to people.

The issue does not name files, tests, or entry points. Start by locating the card model and the main app view, then trace how cards are created, displayed, and deleted. Done means cards can be archived and unarchived, archived cards are hidden from the main view, and an Archived cards view exposes them.