Is your feature request related to a problem? Please describe.
Windows Explorer has optional Registry / Group Policy settings where you can hide System Tray icons for all users, such as Network, and so on. However, right now Cairo's System Tray displays them despite this setting being in place.

Describe the solution you'd like
Cairo could do with following these values to hide the tray icons Explorer is configured to hide via Group Policy / Regedit policies.

Describe alternatives you've considered
Windows's own one exists, but... it isn't really a thing in Windows PE for example (the popup itself that's meant to appear doesn't exist at all).

Additional context
It's also useful for when having a substitute Networks list tray icon (hence you'd want to hide the Windows one to prevent duplication).