7229: change active person upon a bookmark select

Reapply my fix [88d2a2] from gramps34.

gramps/plugins/view/pedigreeview.py

@@ -748,6 +748,7 @@ class PedigreeView(NavigationView):
         if handle:
             person = self.dbstate.db.get_person_from_handle(handle)
             if person:
+                self.change_active(handle)
                 self.rebuild_trees(handle)
             else:
                 self.rebuild_trees(None)