org: replaced org-cycle with doom/org-toggle-fold

I didn't like the extra keypress to refold trees that I only intended to peek
into. If I want to see the whole tree, I go into it and unfold what I needed.

Note, you can still open the entire subtree with zo and cycle the entire page
with zA or zO.

modules/defuns/defuns-org.el

@@ -112,6 +112,16 @@ wrong places)."
             (delete-char 4))
         (insert "[ ] ")))))
 
+;;;###autoload
+(defun doom/org-toggle-fold ()
+  "Toggle the local fold at the point (as opposed to cycling through all levels
+with `org-cycle')."
+  (interactive)
+  (cond ((org-at-heading-p)
+         (outline-toggle-children))
+        ((org-at-item-p)
+         (org-cycle))))
+
 ;;;###autoload
 (defun doom/org-dwim-at-point ()
   "Do-what-I-mean at point. This includes following timestamp links, aligning