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/scripts/__init__.py

@@ -5,7 +5,6 @@ import importlib
 import logging
 import os
 import sys
-
 from typing import List
 
 from homeassistant.bootstrap import async_mount_local_lib_path