Add direnv and fix prompt

macbook/masse.nix

@@ -11,6 +11,8 @@
     qutebrowser
     kobodl
 
+    direnv
+
     myEmacs
     myVim
   ];

macbook/xmonad.dhall

@@ -47,7 +47,7 @@ let spawn = Config.Command.Spawn
 
 in  Config::{
     , path = paths
-    , applications = { terminal, prompt = pkgs.prompt }
+    , applications = { terminal, prompt = prompt }
     , topics =
       [ runOnTopic "signal" "${pkgs.signal}/bin/signal-desktop"
       , runOnTopic "element" "${pkgs.element}/bin/element-desktop"