solved other pylint issues, added ignore pragmas where considered, added two more to the list of globally ignored checks E1131 and E1131

adapted code for new version of django two-factor-auth package that comes with breaking changes. see https://github.com/jazzband/django-two-factor-auth/releases/tag/1.14.0

from CVE-2023-31047 In order to avoid the vulnerability, ClearableFileInput and FileInput form widgets now raise ValueError when the multiple HTML attribute is set on them. To prevent the exception and keep the old behavior, set allow_multiple_selected to True. https://docs.djangoproject.com/en/4.2/releases/3.2.19/

See https://docs.djangoproject.com/en/3.2/topics/http/file-uploads/#uploading-multiple-files