Support for authlib 1.0.0

[tiwilliam]

Flask is currently broken since a fresh install will install authlib 1.0.0.

python3.10/site-packages/loginpass/_flask.py:83: in register_to
    from authlib.integrations.flask_client import FlaskRemoteApp
E   ImportError: cannot import name 'FlaskRemoteApp' from 'authlib.integrations.flask_client' (python3.10/site-packages/authlib/integrations/flask_client/__init__.py)

[brownmk]

Wonder if someone has found a fix for this?

[birkjernstrom]

Ran into the same issue today so investigated and found the issue. Created a PR.