Revert "html template fix (fix for endless spinner 2 attempt)"

This reverts commit 292e911.

app/gtw.py

@@ -227,19 +227,12 @@ def parse_arguments():
 <!-- Optional: Include Bootstrap JS -->
 <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
 
-    <script>
-        // Show spinner when navigation starts
-        function showSpinner(event) {
-            event.preventDefault(); // Prevent the default link action
-            const spinner = document.getElementById('spinner');
-            spinner.style.display = 'flex';
-
-            // Simulate navigation delay (replace with actual navigation logic if needed)
-            setTimeout(() => {
-                window.location.href = '/'; // Redirect to root after delay
-            }, 2000); // Adjust the delay as needed
-        }
-    </script>
+<script>
+    // Function to show the spinner
+    function showSpinner() {
+        document.querySelector('.spinner-overlay').style.display = 'flex';
+    }
+</script>
 
 </body>
 </html>