Tray Icon does not raise rssguard Layer to OnTop

[AndyM48]

Brief description of the feature request

If rssguard is open but covered by other windows, clicking on the tray icon does not raise rssguard to on top. I think that may be it should.

Arch Linux: 6.8.7-artix1-2

[martinrotter]

If window is opened but not on top, then clicking tray icon should hide the window and another click should bring it open and on top.

[AndyM48]

Yes, of course, close the window and then reopen it has the same effect, but is a double click and not a single click.

If the window is closed, one click opens it, but if the window is hidden then, as it stands, two clicks are required. The state if the window, closed or hidden, is not apparent to the use, so the user does not know whether one or two clicks are required to reveal it.