Add icons to shell prompt

fish/.config/fish/functions/fish_prompt.fish

@@ -1,6 +1,10 @@
 function __bcarlin_prompt_suffix
   set -l color_suffix
-  set -l suffix "➜"
+  set -l suffix "->"
+
+  if test ! -z "$fish_private_mode" -a "$fish_private_mode" -eq 1
+      set suffix "👻 $suffix" (set_color normal)
+  end
 
   switch $USER
     case root toor