emacs: add dired-preview package

roles/config/files/emacs/packages.el

@@ -5,6 +5,7 @@
 ;; on the command line, then restart Emacs for the changes to take effect -- or
 ;; use 'M-x doom/reload'.
 
+(package! dired-preview)
 (package! visual-fill-column)
 (package! nerd-fonts
   :recipe (:host github :repo "FollieHiyuki/nerd-fonts.el"))

roles/config/templates/emacs/config.j2

@@ -149,3 +149,9 @@
         org-tree-slide-breadcrumbs " ▶ "
         org-tree-slide-activate-message "Presentation started..."
         org-tree-slide-deactivate-message "Thanks for listening!"))
+
+(use-package! dired-preview
+  :after dired
+  :config
+  (setq dired-preview-max-size (expt 2 30))
+  (dired-preview-global-mode 1))