[pages] Add Recovery Codes and WebAuthn

[cwildfoerster]

Added support for webauthn and recovery codes, based on keycloak base template. Haven't touched the frontend javascript code much, just for jQuery(...) instead of $(...), could be moved to the main script, but may need some refactoring due to alot of freemarker "injected" variabled into the code.

webauthn login

Adding recovery codes:

Authenticator selector

[lukin]

Thanks for your contribution. 🙂

There are some issues that need to be resolved before this PR is merged.

• As you already pointed out, remove jQuery.
• Import all this JS code from a separate file only for the required pages.
• Use components instead of repeating button classes.

I'll try to find time for this.

[cwildfoerster]

Thank you for your input, i'm no frontend dev, but i may try the JS stuff. For now, i just created a secondarySmall button component.

[fbrettnich]

merge?

[Gurkengewuerz]

What is the current state? Can we help somehow? 👀

[lukin]

Most of the client code is rewritten in TypeScript following the example of the Recovery Codes pages. I would welcome any help in testing this next week.

[Gurkengewuerz]

Sure. Just comment on this when it's ready 🙌🏼

[Gurkengewuerz]

Sorry that I had not found time so far. I am writing my bachelor thesis currently. Tested it after i saw your notification and lgtm.