fix: enable org-window-habit in tangled config

Add :tangle directive to org-window-habit source block so it gets
included in org-config-config.el for the container deployment.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

dotfiles/emacs.d/org-config.org

@@ -1102,7 +1102,7 @@ alphanumeric characters only."
   :commands org-ql-find-in-agenda)
 #+end_src
 ** org-window-habit
-#+begin_src emacs-lisp
+#+begin_src emacs-lisp :tangle org-config-config.el
 (use-package org-window-habit
   :demand t
   :straight