Simplify mwim config and prioritize beginning-of-line

C-a C-k is too ingrained for starting in mid-line

thoom-emacs/modules/thoom-editing.el

@@ -4,17 +4,11 @@
   :ensure t
   :bind (([remap move-beginning-of-line] . mwim-beginning)
          ([remap move-end-of-line] . mwim-end))
-  :init
-  (defun thoom/mwim-org-heading-beginning ()
-    (mwim-point-at
-      (move-beginning-of-line nil)
-      (skip-syntax-forward "_ " (line-end-position))))
-  :config
-  (setq mwim-beginning-position-functions
-        '(thoom/mwim-org-heading-beginning
-          mwim-code-beginning
-          mwim-comment-beginning
-          mwim-line-beginning)))
+  :custom
+  (mwim-beginning-position-functions
+   '(mwim-line-beginning
+     mwim-code-beginning
+     mwim-comment-beginning)))
 
 ;; Allow movement during isearch
 ;; C/M-v move  to next/previous match not currently visible