fixed restarting renderer when window is minimized and restored programmatically on Linux

src/Avalonia.X11/X11Window.cs

@@ -648,6 +648,7 @@ namespace Avalonia.X11
                     SendNetWMMessage(_x11.Atoms._NET_ACTIVE_WINDOW, (IntPtr)1, _x11.LastActivityTimestamp,
                         IntPtr.Zero);
                 }
+                WindowStateChanged?.Invoke(value);
             }
         }