[gnome-shell] st: Fix property type

[Florian Müllner <fmuellner src gnome org>]

commit 5295866eff4829e8aa90f75eed5415839e351f11
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 1 12:43:48 2019 +0200

    st: Fix property type
    
    Commit 8f3554ff accidentally changed the type of the StWidget:track-hover
    property from boolean to object.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/1482

 src/st/st-widget.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/src/st/st-widget.c b/src/st/st-widget.c
index 7aff6e50c..5fa676dca 100644
--- a/src/st/st-widget.c
+++ b/src/st/st-widget.c
@@ -927,11 +927,11 @@ st_widget_class_init (StWidgetClass *klass)
    * widget.
    */
   props[PROP_TRACK_HOVER] =
-     g_param_spec_object ("track-hover",
-                          "Track hover",
-                          "Determines whether the widget tracks hover state",
-                          FALSE,
-                          ST_PARAM_READWRITE);
+     g_param_spec_boolean ("track-hover",
+                           "Track hover",
+                           "Determines whether the widget tracks hover state",
+                           FALSE,
+                           ST_PARAM_READWRITE);
 
   /**
    * StWidget:hover: