feat: switch to phoenix liveview

Co-authored-by: Copilot <copilot@github.com>

priv/ui/live.js

@@ -0,0 +1,12 @@
+document.addEventListener("DOMContentLoaded", () => {
+  const csrfToken = document
+    .querySelector("meta[name='csrf-token']")
+    .getAttribute("content");
+
+  const liveSocket = new LiveView.LiveSocket("/live", Phoenix.Socket, {
+    params: { _csrf_token: csrfToken }
+  });
+
+  liveSocket.connect();
+  window.liveSocket = liveSocket;
+});