System sounds freezes UI for brief moment

## Prerequisites
- [x] I have searched open and closed issues for duplicates.

## Describe the bug
After any system sound (notification alert, system warning, etc) it's called by the system the full UI gets frozen for a brief moment, this also happens whenever the media volume key it's pressed, but this has a different effect, while it doesn't freezes the UI, the sound feedback takes a couple of seconds to be heard and the notification to appear.

This bug happens after some time that there is no system sounds played, if the bug happens and try to reproduce again it will work normally.

https://youtu.be/pfbWXKYHQyY

### To Reproduce
Steps to reproduce the behavior:
1. Go to any text input or wait for the updates notifications to play at boot.
2. See error, the UI will freeze for a brief moment until the sound gets played.

### Expected behavior
The system sounds should not make the UI to freeze.

## Platform Information


- [ ] I'm using the latest version from git that I've manually compiled
- [x] I'm using the latest released stable version