Revert "update"

This reverts commit 75cc618c2b.

backend/templates/accounts/turnstile_widget.html

@@ -0,0 +1,22 @@
+<script
+  src="https://challenges.cloudflare.com/turnstile/v0/api.js"
+  async
+  defer
+></script>
+<div class="turnstile">
+  <div
+    id="turnstile-widget"
+    class="cf-turnstile"
+    data-sitekey="{{ site_key }}"
+  ></div>
+</div>
+
+<script>
+  // Apply theme to the Turnstile widget based on the retrieved theme
+  document.addEventListener("DOMContentLoaded", function () {
+    const turnstileWidget = document.getElementById("turnstile-widget");
+    if (turnstileWidget) {
+      turnstileWidget.setAttribute("data-theme", theme);
+    }
+  });
+</script>