macOS notification NSUserNotificationCenter is deprecated + missing Info.plist

[KeyWeeUsr]

plyer/plyer/platforms/macosx/notification.py

Line 46 in ee44e6e

usrnotifctr.setDelegate_(self)

and also defaultUserNotificationCenter() returns None due to missing instructions for macOS
throws a NoneType not having a setDelegate_ attribute.

For other than None result of defaultUserNotificationCenter() there has to be a Info.plist for the application.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleIdentifier</key>
    <string>org.python.python</string>
</dict>
</plist>

ref: jaredks/rumps#9
ref: https://github.com/jaredks/rumps/pull/36/files

[akshayaurora]

This is no longer a issue with python 3.9+ from python.org + venvs and Monterey. Re-open if you can reproduce with new versions.