[gnome-latex] MainWindow: adapt to latest TeplPanel API

[Sébastien Wilmet <swilmet src gnome org>]

commit d4aa8368399e4bdaf5f9ecb3279fd244d23c9103
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Apr 21 20:29:25 2020 +0200

    MainWindow: adapt to latest TeplPanel API

 src/main_window.vala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/main_window.vala b/src/main_window.vala
index e9700cd..f4b9e29 100644
--- a/src/main_window.vala
+++ b/src/main_window.vala
@@ -450,8 +450,8 @@ public class MainWindow : ApplicationWindow
 
         // Restore state
         GLib.Settings settings = new GLib.Settings ("org.gnome.gnome-latex.preferences.ui");
-        side_panel.set_active_component_setting (settings, "side-panel-component");
-        side_panel.restore_settings ();
+        side_panel.provide_active_component_gsetting (settings, "side-panel-component");
+        side_panel.restore_state_from_gsettings ();
 
         // Bind the toggle action to show/hide the side panel
         ToggleAction action = _action_group.get_action ("ViewSidePanel") as ToggleAction;
@@ -928,7 +928,7 @@ public class MainWindow : ApplicationWindow
 
         _main_window_build_tools.save_state ();
 
-        _side_panel.save_settings ();
+        _side_panel.save_state_to_gsettings ();
     }
 
     // start_line and end_line begins at 0.