update plasmic package to omit cjs, migrated example from nextjs to vite/wouter

examples/plasmic/src/main.tsx

@@ -0,0 +1,12 @@
+import { ClientProvider } from "bknd/client";
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import App from "./App.tsx";
+
+createRoot(document.getElementById("root")!).render(
+   <StrictMode>
+      <ClientProvider>
+         <App />
+      </ClientProvider>
+   </StrictMode>
+);