ui.backend.gtk: connect ui signals before realizing the widget

gtk_widget_add_events() needs to be called before gtk_widget_realize()
otherwise oxygen-gtk will steal all lmb clicks

basis/ui/backend/gtk/gtk.factor

@@ -465,14 +465,13 @@ M:: gtk-ui-backend (open-window) ( world -- )
     gtk_window_set_wmclass
 
     world configure-gl
-
-    win gtk_widget_realize
-    win world window-controls>> configure-window-controls
-
     win im configure-im
     win connect-user-input-signals
     win connect-win-state-signals
 
+    win gtk_widget_realize
+    win world window-controls>> configure-window-controls
+
     win gtk_widget_show_all ;
 
 M: gtk-ui-backend (close-window) ( handle -- )
@@ -552,4 +551,3 @@ os unix? os macosx? not and [
 
 M: gtk-ui-backend ui-backend-available?
     "DISPLAY" os-env >boolean ;
-