…am template package

…oo much bold

…120)

Mypy is from now on in full strict mode.

…ion cmds

…am template package

…oo much bold

…120)

Mypy is from now on in full strict mode.

…ion cmds

…ython stdlib

There's a pending error in that library, similar to typeddjango/django-stubs#2479.

Unfortunately the upgrade didn't help, developers may have to use `--no-verify` when committing.

This indicates what is required in `manage.py test` command to run correctly.

The path is required because `amy/` directory is not a package (doesn't contain `__init__.py` file), which isn't supported by unittest discovery:
https://docs.python.org/3/library/unittest.html#test-discovery (see note at the end of the linked section).

Fix for CodeQL scan.

Unified to 1 function for handling next or default URL, 1 function for confirming if URL is safe. Added tests and improved some typing.