Always offer ace-window action dispatch menu when switching windows

This is a trial to make better use of the action dispatch menu (which I currently don't use at all).

init.el

@@ -2496,13 +2496,18 @@ Note that this workaround is incomplete, as explained in this comment."
 
 ;;* Navigation
 
+(setopt other-window-scroll-default #'(lambda ()
+                                        (or (get-mru-window nil nil 'not-this-one)
+                                            (next-window)
+                                            (next-window nil nil 'visible))))
+
 (use-package ace-window
   :ensure t
   :commands (ace-window
              ace-window-display-mode)
   :init (setopt aw-keys '(?a ?s ?d ?f ?g ?h ?j ?k ?l)
                 aw-background t
-                aw-dispatch-always nil
+                aw-dispatch-always t
                 aw-scope 'frame))
 
 (use-package avy