+org/insert-item: fix not jumping over sublists
+org/insert-item: fix not jumping over sublists

Initial:
+ List item 1|  <-- M-RET
  + Sublist

Post-fix:
+ List item 1
  + Sublist
+ |

Pre-fix:
+ List item 1
+ |
  + Sublist

aminb/.emacs.d,hlissner/.emacs.d,UndeadKernel/emacs_doom,UndeadKernel/emacs_doom,aminb/.emacs.d,aminb/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/doom-emacs,aminb/.emacs.d,UndeadKernel/emacs_doom,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,aminb/.emacs.d,UndeadKernel/emacs_doom,aminb/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,UndeadKernel/emacs_doom,aminb/.emacs.d,aminb/.emacs.d,UndeadKernel/emacs_doom,hlissner/.emacs.d,UndeadKernel/emacs_doom,hlissner/doom-emacs