Simplify frontend assests and build steps

We just write the files directly in the public dir
Then change the npm scripts to lint and compress them directly

public/assets/js/app.js

@@ -0,0 +1,15 @@
+import { Auth } from './auth.js';
+
+let auth = new Auth();
+
+document.querySelectorAll('.add-passkey').forEach((el) => {
+  el.addEventListener('click', () => {
+    auth.register();
+  });
+});
+
+document.querySelectorAll('.login-passkey').forEach((el) => {
+  el.addEventListener('click', () => {
+    auth.login();
+  });
+});