chore: add website directory to gitignore and update VSCode config

- Add `website/` to .gitignore to exclude website build artifacts
- Add Node.js debug configurations for FutureOSS website in launch.json
- Update VSCode color theme to "Default Dark Modern"
- Refactor plugin loader to simplify dependency and lifecycle plugin loading logic

.vscode/settings.json

@@ -108,7 +108,7 @@
   "workbench.editor.enablePreview": false,
   "workbench.editor.enablePreviewFromQuickOpen": false,
   "workbench.startupEditor": "none",
-  "workbench.colorTheme": "Dark Modern",
+  "workbench.colorTheme": "Default Dark Modern",
   "workbench.iconTheme": "vs-seti",
   "breadcrumbs.enabled": true,
   "editor.minimap.enabled": true,
@@ -150,4 +150,4 @@
   "editor.suggest.showValues": true,
   "editor.suggest.showVariables": true,
   "editor.suggest.showWords": true
-}
+}