Comment 2 for bug 1806264

This commit avoid writing the entire keyring for each action. Instead, every Keyring subclass stores a map between the provided IdCard and the internal reference the Keyring uses. That way, it is possible to directly remove the card, even when display_name or NAI changed.

https://github.com/janetuk/moonshot-ui/commit/58245fbdd04f76717f5b9f6ad0154f40d521bc61