Enhance dashboard data fetching by adding active site checks

- Implemented checks for active site in Home, Planner, and Writer dashboards to prevent data fetching when no site is selected.
- Updated API calls to include site_id in requests for better data accuracy.
- Modified user messages to guide users in selecting an active site for insights.

frontend/src/pages/Writer/Dashboard.tsx

@@ -78,13 +78,19 @@ export default function WriterDashboard() {
   const [lastUpdated, setLastUpdated] = useState<Date>(new Date());
 
   const fetchDashboardData = async () => {
+    if (!activeSite) {
+      setStats(null);
+      setLoading(false);
+      return;
+    }
+
     try {
       setLoading(true);
       
       const [tasksRes, contentRes, imagesRes] = await Promise.all([
-        fetchTasks({ page_size: 1000, sector_id: activeSector?.id }),
-        fetchContent({ page_size: 1000, sector_id: activeSector?.id }),
-        fetchContentImages({ sector_id: activeSector?.id })
+        fetchTasks({ page_size: 1000, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchContent({ page_size: 1000, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchContentImages({ site_id: activeSite.id, sector_id: activeSector?.id })
       ]);
 
       const tasks = tasksRes.results || [];
@@ -447,7 +453,11 @@ export default function WriterDashboard() {
         <PageMeta title="Writer Dashboard - IGNY8" description="Content creation overview" />
         <div className="text-center py-12">
           <p className="text-gray-600 dark:text-gray-400">
-            {activeSector ? 'No data available for the selected sector.' : 'No data available. Select a sector or wait for data to load.'}
+            {!activeSite
+              ? 'Select an active site to view writer insights.'
+              : activeSector
+                ? 'No data available for the selected sector.'
+                : 'No data available. Select a sector or wait for data to load.'}
           </p>
         </div>
       </>