Add initial emacs configuration

modules/nixos/development/default.nix

@@ -0,0 +1,9 @@
+{ username, ... }:
+
+{
+  environment.persistence."/nix/persist" = {
+    users."${username}".directories = [
+      ".local/share/emacs"
+    ];
+  };
+}

modules/nixos/user/caem.nix

@@ -15,9 +15,6 @@
         "images"
         "videos"
         "programming"
-
-        # Temporary persist until I get a proper emacs configuration
-        ".emacs.d"
       ];
     };
   };