Process names (e.g. explorer.exe) instead of window titles by aw-watcher-window

- [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**: Windows 10 Pro 20H2 build Edition Windows 10 Pro build 19042.1237
- **ActivityWatch version**: 0.11.0

## Describe the bug
Not sure if this is actually a bug or intended behaviour, but the official screenshots imply otherwise. For window titles `aw-watcher-window` seems to log the process names (e.g. `firefox.exe` instead of `Firefox`). This also affects category matching, e.g. (case-sensitive) `Firefox` won't match the firefox application, but `firefox.exe` or (case-sensitive) `firefox` will.

This is on a fresh install.

Maybe it's relevant, I installed ActivityWatch using chocolatey https://community.chocolatey.org/packages/activitywatch

## Expected behavior
Show the window titles as shown in the official screenshots.

## Documentation

## Additional context
I found errors in the aw-watcher-window logs but don't think they are related:

```
2021-10-07 20:18:55 [INFO ]: aw-watcher-window started (aw_watcher_window.main:51)
2021-10-07 20:18:56 [INFO ]: Connection to aw-server established by aw-watcher-window (aw_client.client:419)
2021-10-07 20:53:53 [ERROR]: Exception thrown while trying to get active window: (-2147217385, 'OLE error 0x80041017', None, None) (aw_watcher_window.main:75)
2021-10-07 20:55:52 [ERROR]: Exception thrown while trying to get active window: (-2147217385, 'OLE error 0x80041017', None, None) (aw_watcher_window.main:75)
2021-10-07 22:30:43 [ERROR]: Exception thrown while trying to get active window: (-2147217385, 'OLE error 0x80041017', None, None) (aw_watcher_window.main:75)
2021-10-07 23:33:29 [ERROR]: Exception thrown while trying to get active window: (-2147217385, 'OLE error 0x80041017', None, None) (aw_watcher_window.main:75)
```
There's more identical OLE errors

Maybe those relate to the "unknown" application.