Merge branch 'menu_button_a11y_improvements' into 'master'
authorMatthias Clasen <mclasen@redhat.com>
Fri, 17 Sep 2021 16:51:52 +0000 (16:51 +0000)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 17 Sep 2021 16:51:52 +0000 (16:51 +0000)
Set correct accessible relations for GtkMenuButton

Closes #4254

See merge request GNOME/gtk!3950


Trivial merge