Make isort compatible with black

isort's lines_after_imports = 2 conflicted with black, so run-cleanup
reverted black's changes. Use isort's black profile instead and apply the
resulting formatting. Also fix the flake8 errors in check_email_mixin and
drop a leftover debug print.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

max/translations.py

@@ -2,7 +2,6 @@ import json
 import os
 import re
 
-
 ACCEPT_LANGUAGE_HEADER_REGEX = re.compile(r"([a-zA-Z]{2,3})(-[a-zA-Z\-]+)?")