Fix criticals in g_file_info_get_name with trashed files

Per the enumerate_children docs, G_FILE_ATTRIBUTE_STANDARD_NAME attributes must be gathered to avoid criticals like this when iterating over the files:

GFileInfo created without standard::name
file ../gio/gfileinfo.c: line 1713 (g_file_info_get_name): should not be reached

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Related bug reports:

• thunar#1527 (closed)
• https://gitlab.gnome.org/GNOME/gvfs/-/issues/777
• https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/2103737
• https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/2115014
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1070716

Docs:

• https://docs.gtk.org/gio/method.File.enumerate_children.html