[git] Add `magit-todo` to `evil-collection` configured packages

thanks goes to duianto for suggesting this move.

layers/+source-control/git/packages.el

@@ -300,6 +300,9 @@
               (spacemacs|diminish magit-svn-mode "SVN")
               (define-key magit-mode-map "~" 'magit-svn))))
 
+(defun git/pre-init-magit-todos ()
+  (add-to-list 'spacemacs-evil-collection-allowed-list 'magit-todos))
+
 (defun git/init-magit-todos ()
   (use-package magit-todos
     :hook (magit-mode . magit-todos-mode)