do better with loop cleanup (#3245)

* do better with loop cleanup

* changelog

* remove redundant line

* Do this a bit better than the initial pass

* Improve windows support

Make some other things coroutines to work with improved design

* Wish we'd have done this right from the start...

* Update deps surrounding this

 - see bpo-23057
 - neccessary for windows users
 - nice for consistent support channel info / feature availability

* dep issue

* Fix tests

* duplication plugin py version

* actually handle this

* Reconfigure some checks with codeclimate, disable pylint for now

* style

* Is my exasperation showing yet?

* handle some stupid stuff

* meh

* dep changelog

redbot/core/modlog.py

@@ -1,11 +1,12 @@
+from __future__ import annotations
+
 import asyncio
 from datetime import datetime, timedelta
-from typing import List, Union, Optional, cast
+from typing import List, Union, Optional, cast, TYPE_CHECKING
 
 import discord
 
 from redbot.core import Config
-from redbot.core.bot import Red
 
 from .utils.common_filters import (
     filter_invites,
@@ -17,6 +18,9 @@ from .i18n import Translator
 
 from .generic_casetypes import all_generics
 
+if TYPE_CHECKING:
+    from redbot.core.bot import Red
+
 __all__ = [
     "Case",
     "CaseType",