Change from deadlines to scheduled

public/app.js

@@ -4,13 +4,13 @@ document.getElementById('taskForm').addEventListener('submit', function(e) {
     // Get form values
     const subject = document.getElementById('subject').value;
     const description = document.getElementById('description').value;
-    const deadline = document.getElementById('deadline').value;
+    const scheduled = document.getElementById('scheduled').value;
 
     // Structure data for Org mode
     const taskData = {
         subject,
         description,
-        deadline
+        scheduled
     };
 
     // Send data to backend using fetch