[Feature request] Build Transmission GTK4 with systray support

Description:

The transmission-gtk package doesn't include systray support. According to this issue on the Transmission repo: https://github.com/transmission/transmission/issues/5670, the GTK4 version can be built with systray support using ayatana. Could you make that change?

Additional info:

• package version(s): 4.0.6-2
• config and/or log files:
• link to upstream bug report, if any: https://github.com/transmission/transmission/issues/5670

Steps to reproduce:

1. Open Transmission.
2. Open the preferences' menu: Edit > Preferences.
3. Click on the Desktop tab.
4. Observe that there is no option to enable minimizing to an icon in the systray.