Disable global-so-long-mode.

I think that is better if the user can enable
long-lines-mode manually when consider necessary.

configs/init-packages.el

@@ -286,7 +286,7 @@
 (use-package so-long
   :defer t
   :straight (:type built-in)
-  :hook (after-init . global-so-long-mode)
+  ;; :hook (after-init . global-so-long-mode)
   :bind (:map so-long-mode-map
               ("C-s"    . isearch-forward)
               ("C-r"    . isearch-backward))