Isort preparations (#16555)

* Don't treat typing as an "in-between" module for import order

That was a < 3.5 era thing.

* Tighten scope of some pylint unused-import disables

To avoid isort moving a top level one around, undesirably broadening its
scope.

homeassistant/__main__.py

@@ -7,7 +7,6 @@ import platform
 import subprocess
 import sys
 import threading
-
 from typing import List, Dict, Any  # noqa pylint: disable=unused-import