feat: Redesign calendar page with default week view, improved app bar, and a consolidated activity timeline.

functions/index.js

@@ -29,22 +29,24 @@ async function sendNotificationToUsers(userIds, title, body, excludeUserId, data
             }
         }
 
-        console.log(`Total tokens to send: ${tokens.length}`);
+        // De-duplicate tokens
+        const uniqueTokens = [...new Set(tokens)];
+        console.log(`Total unique tokens to send: ${uniqueTokens.length} (from ${tokens.length} found)`);
 
-        if (tokens.length > 0) {
+        if (uniqueTokens.length > 0) {
             const message = {
                 notification: {
                     title: title,
                     body: body,
                 },
-                tokens: tokens,
+                tokens: uniqueTokens,
                 data: {
                     click_action: "FLUTTER_NOTIFICATION_CLICK",
                     ...data
                 },
             };
 
-            const response = await admin.messaging().sendMulticast(message);
+            const response = await admin.messaging().sendEachForMulticast(message);
             console.log(`${response.successCount} messages were sent successfully`);
             if (response.failureCount > 0) {
                 console.log('Failed notifications:', response.responses.filter(r => !r.success));