emacs/dired: add diredfl & refactor

- Adds C-c C-e for invoking wdired
- Adds diredfl for more colors in dired (and disables dired-k's coloring
  based on mtime, which was confusing)

modules/emacs/dired/packages.el

@@ -1,6 +1,7 @@
 ;; -*- no-byte-compile: t; -*-
 ;;; emacs/dired/packages.el
 
+(package! diredfl)
 (package! dired-k)
 (when (featurep! +ranger)
   (package! ranger))