aw-watcher-window's exclude_title, exclude_titles config setting does not work for macOS

[Ryuho]

• I am on the latest ActivityWatch version.
• I have searched the issues of this repo and believe that this is not a duplicate.

• OS name and version: MacOS Sequoia 15.4
• ActivityWatch version: v0.13.2

Describe the bug

The setting described in ActivityWatch/aw-watcher-window#99 does not work.

To Reproduce

1. Click on aw-qt system tray, click ‘Open config folder’
2. Open the aw-watcher-window/aw-watcher-window.toml with text editor.
3. Modified #exclude_title = false to exclude_title = true.
4. Quit ActivityWatch by clicking on aw-qt system tray, and clicking ‘Quit ActivityWatch’
5. Restart the app.
6. See that the newly logged activity still has window titles logged and recorded through the dashboard / timeline webUI.

Expected behavior

The newly logged activity has the window titles redacted,excluded.

[github-actions]

Hi there!
As you're new to this repo, please make sure you've used an appropriate issue template and searched for duplicates (it helps us focus on actual development!). We'd also like to suggest that you read our contribution guidelines and our code of conduct.
Thanks a bunch for opening your first issue! 🙏