fixed message handler

sw.js

@@ -142,12 +142,24 @@ self.addEventListener('push', event => {
         });
       }
 
-      // Post message to each client
+      // Post message to each client with improved reliability
       let messageSent = false;
-      clientList.forEach(client => {
+      const sendPromises = clientList.map(client => {
         console.log(`[ServiceWorker] Posting message to client: ${client.id}`, messagePayload);
-        client.postMessage(messagePayload);
-        messageSent = true; // Mark that we at least tried to send a message
+        try {
+          // Try to send the message and mark it as sent
+          client.postMessage(messagePayload);
+          messageSent = true;
+          
+          // Also try to focus the client to ensure it gets the message
+          if ('focus' in client) {
+            return client.focus().then(() => true);
+          }
+          return Promise.resolve(true);
+        } catch (error) {
+          console.error('[ServiceWorker] Error posting message to client:', error);
+          return Promise.resolve(false);
+        }
       });
 
       // Decide whether to still show a notification even if a window is open.