feat(format): add :lang emacs-lisp formatter

Introduce a formatter function for emacs-lisp (tracked upstream here
[1]) that tries to preserve as much of what the user wants as possible

[1]: https://github.com/radian-software/apheleia/pull/102

modules/lang/emacs-lisp/config.el

@@ -39,6 +39,7 @@ See `+emacs-lisp-non-package-mode' for details.")
     :documentation #'+emacs-lisp-lookup-documentation)
   (set-docsets! '(emacs-lisp-mode lisp-interaction-mode) "Emacs Lisp")
   (set-ligatures! 'emacs-lisp-mode :lambda "lambda")
+  (set-formatter! 'lisp-indent #'apheleia--indent-lisp-buffer :modes '(emacs-lisp-mode))
   (set-rotate-patterns! 'emacs-lisp-mode
     :symbols '(("t" "nil")
                ("let" "let*")