K-9 Mail v6.501

What's Changed

• Delete spam messages immediately without moving them to the trash folder (@cketti)
• Changed the way home screen widgets are disabled when there is no account set up to work around a bug in Android versions prior to 12 (@cketti)
• Mark recent changes as read when the snackbar is dismissed via swipe (@cketti)

Full Changelog: 6.500...6.501