Fix gs in org-mode #2218

Also makes +evil/easymotion generic; it can now be moved to any key, and
new keys can be added to the <easymotion> event, rather than having to
wait for evilem-map to become available.

Also fixes +org/goto-visible if used before avy is loaded.

Relevant to #1672

modules/lang/org/autoload/org-avy.el

@@ -3,6 +3,7 @@
 ;;;###autoload
 (defun +org-headline-avy ()
   "TODO"
+  (require 'avy)
   (save-excursion
     (when-let* ((org-reverse-note-order t)
                 (pos (avy-with avy-goto-line (avy-jump (rx bol (1+ "*") (1+ blank))))))