[gnome-photos] export-dialog: Ensure that the Folder Name GtkEntry has focus

[Debarshi Ray <debarshir src gnome org>]

commit acbc06fd59d6495b6bd042524154057f1d1d6226
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Feb 6 20:35:49 2018 +0100

    export-dialog: Ensure that the Folder Name GtkEntry has focus
    
    The Name Folder GtkEntry seems to have been getting the focus purely
    by accident. Explicitly grabbing it will ensure that it stays that way
    and prevent some future change from breaking it.

 src/photos-export-dialog.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/photos-export-dialog.c b/src/photos-export-dialog.c
index 46e8a5ee..12c17d12 100644
--- a/src/photos-export-dialog.c
+++ b/src/photos-export-dialog.c
@@ -205,6 +205,8 @@ photos_export_dialog_constructed (GObject *object)
                                                photos_export_dialog_guess_sizes,
                                                self);
     }
+
+  gtk_widget_grab_focus (self->dir_entry);
 }