Check both front and back for metadata to avoid generating new CardIDs

[ccammack]

To reproduce bug #128, enable anki.md.insertNewCardID and run Anki:Send To Own Deck multiple times on this deck and note that it generates new CardIDs each time:

# Test CardID Bug

## Front (2024-06-08 19:51:42)
%
Back (2024-06-08 19:51:42)

## Front (2024-06-08 19:51:56)

%
Back (2024-06-08 19:51:56)

## Front (2024-06-08 19:52:04)
%

Back (2024-06-08 19:52:04)

## Front (2024-06-08 19:52:13)

%

Back (2024-06-08 19:52:13)

## Front (2024-06-08 19:52:20)
Back (2024-06-08 19:52:20)

## Front (2024-06-08 19:52:25)

Back (2024-06-08 19:52:25)

Apply the fix and repeat the test to see that the CardIDs are only generated once..

[jasonwilliams]

Thanks, I can confirm this patch works and I have tried the reproduction steps listed in the linked-issue.
I've noticed this doesn't actually update the contents of the card in Anki but I think we never got around to implementing this.

looks like just linting left to sort out

[ccammack]

Updates seem to work for me on the test deck if anki.md.updateCards is enabled.

[jasonwilliams]

ah yes thanks, just tested and it works fine, I can see the bug is fixed.
The CI looks unrelated so ill ignore that, it would be great if we had a test suite for this, but I won't hold up this PR on that basis

[jasonwilliams]

This has been released:
https://github.com/jasonwilliams/anki/releases/tag/v1.3.3