fix cursor display at start

src/manager_window.vala

@@ -159,7 +159,9 @@ namespace Pamac {
 
 		bool populate_window () {
 			this.get_window ().set_cursor (new Gdk.Cursor.for_display (Gdk.Display.get_default (), Gdk.CursorType.WATCH));
-
+			while (Gtk.events_pending ()) {
+				Gtk.main_iteration ();
+			}
 			right_click_menu = new Gtk.Menu ();
 			deselect_item = new Gtk.MenuItem.with_label (dgettext (null, "Deselect"));
 			deselect_item.activate.connect (on_deselect_item_activate);

src/updater_window.vala

@@ -81,7 +81,9 @@ namespace Pamac {
 
 		bool populate_window () {
 			this.get_window ().set_cursor (new Gdk.Cursor.for_display (Gdk.Display.get_default (), Gdk.CursorType.WATCH));
-
+			while (Gtk.events_pending ()) {
+				Gtk.main_iteration ();
+			}
 			repos_updates_list = new Gtk.ListStore (7, typeof (bool), typeof (string), typeof (string), typeof (string),typeof (string), typeof (string), typeof (uint64));
 			repos_updates_treeview.set_model (repos_updates_list);
 			aur_updates_list = new Gtk.ListStore (4, typeof (bool), typeof (string), typeof (string), typeof (string));