[PATCH v21 0/6] MR2808: Draft: SNI tray implementation

[Cherser-s (＠Cherser-s)]

Adds the tray icons implementation based on org.kde.StatusNotifierItem interface usage. Does allow restarting StatusNotifierWatcher object, but will fallback to XEMBED or internal tray, if wine gets initialized when there is no StatusNotifierWatcher object registered.

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  v21: winesni.drv: add dbus watch instead of using plain unix fds and flush

https://gitlab.winehq.org/wine/wine/-/merge_requests/2808