[defaults] Add SPC f e I to open Emacs early-init.el file

CHANGELOG.develop

@@ -936,6 +936,8 @@ Other:
     - ~SPC F O~ (=dired-other-frame=)
     (thanks to Miciah Masters)
   - New key binding ~SPC f i~ for =insert-file=.
+  - New key binidng ~SPC f e I~ to open =early-init.el= file
+    (thanks to Sylvain Benner)
   - New ~SPC f e U~ to update packages (thanks to Codruț Constantin Gușoi)
   - New frame manipulation key bindings:
     - Added ~SPC F f~ for =find-file-other-frame=

layers/+spacemacs/spacemacs-defaults/funcs.el

@@ -825,6 +825,11 @@ variable."
   (interactive)
   (find-file-existing user-init-file))
 
+(defun spacemacs/find-user-early-init-file ()
+  "Edit the `early-init-file', in the current window."
+  (interactive)
+  (find-file-existing early-init-file))
+
 (defun spacemacs/find-dotfile ()
   "Edit the `dotfile', in the current window."
   (interactive)

layers/+spacemacs/spacemacs-defaults/keybindings.el

@@ -377,6 +377,7 @@
     ("C-e" spacemacs/force-init-spacemacs-env "Recreate env. variables file")
     ("c" spacemacs/recompile-elpa "Recompile packages")
     ("i" spacemacs/find-user-init-file "Open Emacs \"init.el\"")
+    ("I" spacemacs/find-user-early-init-file "Open Emacs \"early-init.el\"")
     ("d" spacemacs/find-dotfile "Open Spacemacs dotfile")
     ("D" spacemacs/ediff-dotfile-and-template "Diff. with dotfile template")
     ("e" spacemacs/edit-env "Open \".spacemacs.env\"")