[geary] client: Fix setting service provider

[Cédric Bellegarde <cbellegarde src gnome org>]

commit 81bd51bdbc6682cf71509df751c9bb2a76eb0cd0
Author: Cédric Bellegarde <cedric bellegarde adishatz org>
Date:   Mon Sep 26 13:26:54 2022 +0200

    client: Fix setting service provider

 src/client/application/application-main-window.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/client/application/application-main-window.vala 
b/src/client/application/application-main-window.vala
index 1d7daa93d..49a882a7f 100644
--- a/src/client/application/application-main-window.vala
+++ b/src/client/application/application-main-window.vala
@@ -1574,8 +1574,8 @@ public class Application.MainWindow :
             if (account != null) {
                 var service_provider = account.information.service_provider;
                 this.conversation_list_actions.service_provider = service_provider;
-                this.main_toolbar.full_actions.service_provider = service_provider;
-                this.main_toolbar.compact_actions.service_provider = service_provider;
+                this.conversation_headerbar.full_actions.service_provider = service_provider;
+                this.conversation_headerbar.compact_actions.service_provider = service_provider;
 
                 foreach (var menu in this.folder_popovers) {
                     var folders = account.list_folders();