Verify User in user Page

### Please agree to the following

- [x] I have searched [existing issues](https://github.com/cryptomator/hub/issues?q=) for duplicates
- [x] I agree to follow this project's [Code of Conduct](https://github.com/cryptomator/hub/blob/develop/.github/CODE_OF_CONDUCT.md)

### Summary

A user can be verified in the user page.

### Motivation

As a normal user I want to verify another user.

The other user showed me their fingerprint and their username.
I go to the users info page.
But I cannot verify the user, because the interface does not show any "verify" action.

### Considered Alternatives

The only workaround is to have a vault, where i am the owner and the other user is a member.

Selecting the vault in the vault list opens the vault info page, where i can verify the user.

### Anything else?

_No response_