added some dev apps and services

user/dev/editor/vscodium.nix

@@ -0,0 +1,4 @@
+{ pkgs, ... }:
+{
+  home.packages = [ pkgs.vscodium ];
+}

user/dev/editor/zed-editor.nix

@@ -0,0 +1,4 @@
+{ pkgs, ... }:
+{
+  home.packages = [ pkgs.zed-editor ];
+}