Add support for Passkeys

[j-f1]

We can use SimpleWebAuthn to set this up, but it is not particularly simple to set up. This would be an optional replacement for passwords, so the database schema would need to be updated to support switching between the two credentials. (Maybe we should switch the accounts DB to JSON to make it easier to handle? See also #1091 which would be a reason to stick with SQL.)

[rich-howell]

Should this be linked in Actual as a feature so it can be voted on before we work on it?

[github-actions]

✨ Thanks for sharing your idea! ✨

This repository is now using lodash style issue management for enhancements. This means enhancement issues will now be closed instead of leaving them open. This doesn’t mean we don’t accept feature requests, though! We will consider implementing ones that receive many upvotes, and we welcome contributions for any feature requests marked as needing votes (just post a comment first so we can help you make a successful contribution).

The enhancement backlog can be found here: https://github.com/actualbudget/actual/issues?q=label%3A%22needs+votes%22+sort%3Areactions-%2B1-desc+

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[youngcw]

closing in favor of #2042