added an ediff init module

init.el

@@ -38,6 +38,7 @@
   (add-to-list 'load-path (file-name-concat config-directory "conf-mode"))
   (add-to-list 'load-path (file-name-concat config-directory "dired"))
   (add-to-list 'load-path (file-name-concat config-directory "display-buffer"))
+  (add-to-list 'load-path (file-name-concat config-directory "ediff"))
   (add-to-list 'load-path (file-name-concat config-directory "eglot"))
   (add-to-list 'load-path (file-name-concat config-directory "eldoc"))
   (add-to-list 'load-path (file-name-concat config-directory "electric"))
@@ -62,6 +63,7 @@
 (require 'init-prog-mode)
 (require 'init-dired)
 (require 'init-display-buffer)
+(require 'init-ediff)
 (require 'init-eldoc)
 (require 'init-electric)
 (require 'init-flymake)

init/ediff/init-ediff.el

@@ -0,0 +1,4 @@
+(setq ediff-split-window-function 'split-window-horizontally
+      ediff-window-setup-function 'ediff-setup-windows-plain)
+
+(provide 'init-ediff)