update to v2.2.1

fix type issues with root object wrapping node or querySelector
fix incorrect import in demo
fix unused options in vite.config.js
add (some) tests - more to come!

vitest.config.js

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vite';
+
+export default defineConfig({
+  test: {
+    setupFiles: ["./setupTests.ts"],
+  },
+})