homemanager: Move vscode to own module

home-manager/modules/vscode.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }: {
+
+  programs.vscode = {
+      enable = true;
+      package = pkgs.vscodium;    # You can skip this if you want to use the unfree version
+      extensions = with pkgs.vscode-extensions; [
+        dracula-theme.theme-dracula
+        vscodevim.vim
+        yzhang.markdown-all-in-one
+        ms-python.python
+      ];
+    };
+}