some nvim and vscode changes

home/vscode.nix

@@ -5,5 +5,13 @@
     enableUpdateCheck = false;
     enableExtensionUpdateCheck = false;
     mutableExtensionsDir = false;
+    extensions = with pkgs.vscode-extensions; [
+      vscodevim.vim
+      jnoortheen.nix-ide # nix language support
+      editorconfig.editorconfig # editorconfig
+      dracula-theme.theme-dracula # color scheme
+      tomoki1207.pdf # pdf viewer
+      yzhang.markdown-all-in-one # markdown tools
+    ];
   };
 }