Implement Google reCAPTCHA v3 in other payment methods where it makes sense

For example when submitting to Unzer.

Implement other Captchas instead of Google reCaptcha V3

Users should have the choice. Make the implementation generic, so that other captchas can be used.

REname "Active" & "inactive"?

To "visible", "invisible" as it's only relevant for the visibility on the frontend, while "Archive" is the deleteion-aqe...