List NK3 and NKPK devices

[mmerklinger]

This adds support for the Nitrokey Passkey.

Changes:

• Recognize Nitrokey 3 and Nitrokey Passkey.

Todo:
[x] Change title in overview tab.
[x] Make sure the update is performed for the correct model. -> Update for Passkey is currently disabled
[x] Disable passwords tab for Nitrokey Passkey.
[x] Disable "Passwords" entry in settings tab.

Fixes: #305

[mmerklinger]

This currently uses an unreleased change in nethsm-sdk-py, which can be included by updating the VENV with nitrokey = { git = "https://github.com/nitrokey/nitrokey-sdk-py.git", branch = "main" } in pyproject.toml.