Relocate Org zero-width space stripping code

config.org

@@ -8243,22 +8243,13 @@ or put a currency symbol immediately before an inline source block.
 There is a solution to this, it just sounds slightly hacky --- zero width spaces.
 Because this is Emacs, we can make this feel much less hacky by making a minor
 addition to the Org key map 🙂.
+
 #+begin_src emacs-lisp
 (map! :map org-mode-map
       :nie "M-SPC M-SPC" (cmd! (insert "\u200B")))
 #+end_src
 
-We then want to stop the space from being included in exports, which can be done
-with a little filter.
-#+begin_src emacs-lisp
-(defun +org-export-remove-zero-width-space (text _backend _info)
-  "Remove zero width spaces from TEXT."
-  (unless (org-export-derived-backend-p 'org)
-    (replace-regexp-in-string "\u200B" "" text)))
-
-(after! ox
-  (add-to-list 'org-export-filter-final-output-functions #'+org-export-remove-zero-width-space t))
-#+end_src
+We then want to stop the space from being included in exports, which is done [[*Strip zero width spaces][here]].
 
 ***** List bullet sequence
 
@@ -10122,6 +10113,20 @@ TODO abstract backend implementations."
 (setq org-latex-format-headline-function #'org-latex-format-headline-acronymised)
 #+end_src
 
+**** Strip zero width spaces
+
+Zero width spaces are handy as a semantic separator, but not something we want
+passed through to the exports.
+
+#+begin_src emacs-lisp
+(defun +org-export-remove-zero-width-space (text _backend _info)
+  "Remove zero width spaces from TEXT."
+  (unless (org-export-derived-backend-p 'org)
+    (replace-regexp-in-string "\u200B" "" text)))
+
+(add-to-list 'org-export-filter-final-output-functions #'+org-export-remove-zero-width-space t)
+#+end_src
+
 **** Exporting Org code
 
 With all our Org config and hooks, exporting an Org code block when using