Looks up the action in the action groups associated with
@widget and its ancestors, and activates it.
If the action is in an action group added with
[method@Gtk.Widget.insert_action_group], the @name is expected
to be prefixed with the prefix that was used when the group was
inserted.
The arguments must match the actions expected parameter type,
as returned by g_action_get_parameter_type().
Looks up the action in the action groups associated with @widget and its ancestors, and activates it.
If the action is in an action group added with [method@Gtk.Widget.insert_action_group], the @name is expected to be prefixed with the prefix that was used when the group was inserted.
The arguments must match the actions expected parameter type, as returned by g_action_get_parameter_type().