try fixing env stuff (again)

modules/desktop/default.nix

@@ -69,6 +69,9 @@ in
     };
 
     home-manager.users.jade = {pkgs, ...}: {
+      home.sessionVariables = {
+        "S10E_JRNL_FILE_LOC" = "/home/jade/Docs/jrnl.md";
+      };
       programs.ssh = {
         controlMaster = "yes";
       };

modules/shell/helix.nix

@@ -20,6 +20,7 @@
     };
     programs.helix = {
       enable = true;
+      defaultEditor = true;
       package = helix-inline-diags.outputs.packages."x86_64-linux".default;
       settings = {
         theme = "gruvbox";