The tray notification for finished downloads is wrongly displayed even when the tray is hidden

[Softvision-RemusDranca]

[Affected Versions]:

• Firefox Reality version 10 RC1 (6db2f60).

[Affected Platforms]:

• Oculus Quest - Android 7.1.1
• HTC Vive Focus - Android 7.1.2
• Pico Neo2 - Android 8.1.0

[Prerequisites]:

• The Firefox Reality browser is open.

[Steps to reproduce]:

1. Navigate to a website and download a file.
2. Open the Downloads page to observe the download progress.
3. Click the Awesomebar so that the keyboard is displayed.
4. Wait until the file is downloaded.
5. Observe if the notification "'name of file' Downloaded" is displayed.

[Expected results]:

• The notification is not displayed.

[Actual results]:

• The notification is displayed even if the tray is hidden.

[Notes]:

• The notification is also displayed while in immerseve/theater mode.
• Attached is a screen recording of the issue: link.

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible with the Firefox Reality version 10 RC2 (17a313b). The tray notification for finished downloads is no longer displayed when the tray is hidden.

Tested on HTC Vive Focus (Android 7.1.2), Oculus Quest (Android 7.1.1) and Pico Neo 2 (Android - 8.1.0) devices.