[evolution] EImportAssistant: Use a header bar as title bar

[Milan Crha <mcrha src gnome org>]

commit 7f7a1c9bf30dbc3bf0c94772013efba238ab158b
Author: Cédric Bellegarde <cedric bellegarde adishatz org>
Date:   Sat Jun 25 13:37:13 2022 +0200

    EImportAssistant: Use a header bar as title bar

 src/e-util/e-import-assistant.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/e-util/e-import-assistant.c b/src/e-util/e-import-assistant.c
index 42cff3eb24..987515def1 100644
--- a/src/e-util/e-import-assistant.c
+++ b/src/e-util/e-import-assistant.c
@@ -1510,6 +1510,7 @@ e_import_assistant_new (GtkWindow *parent)
 
        assistant = g_object_new (
                        E_TYPE_IMPORT_ASSISTANT,
+                       "use-header-bar", TRUE,
                        "transient-for", parent, NULL);
 
        import_assistant_construct (E_IMPORT_ASSISTANT (assistant));