big periods of 'loginwindow' recorded when macbook is closed

- [x] I am on the [latest](https://github.com/ActivityWatch/activitywatch/releases/latest) ActivityWatch version.
- [x] I have searched the issues of this repo and believe that this is not a duplicate.

- **OS name and version**: macOS Monterey 12.6 (21G115)
- **ActivityWatch version**: v0.12.1

## Describe the bug

Since the latest version it is picking up `loginwindow` when my laptop is closed:

Looks like AFK is still registering ok:

Don't know if this is classed as a bug, bit it feels like one, and is different behaviour to v0.11