feat(web-ui): add confirmation dialog before deleting streams

www/index.html

@@ -81,15 +81,26 @@
         });
 
     const tbody = document.getElementById('streams');
-    tbody.addEventListener('click', ev => {
+    tbody.addEventListener('click', async ev => {
         if (ev.target.innerText !== 'delete') return;
 
         ev.preventDefault();
 
         const url = new URL('api/streams', location.href);
         const src = decodeURIComponent(ev.target.dataset.name);
         url.searchParams.set('src', src);
-        fetch(url, {method: 'DELETE'}).then(reload);
+        const message = `Are you sure you want to stop and delete the stream "${src}" from the configuration? This action is irreversible`;
+
+        const confirmDelete = confirm(message);
+        if (!confirmDelete) return;
+
+        try {    
+
+            await fetch(url, { method: 'DELETE' });
+            reload();
+        } catch (error) {
+            console.error('Failed to delete the stream:', error);
+        }
     });
 
     document.getElementById('selectall').addEventListener('change', ev => {