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/Dashboard/Home.tsx

@@ -199,16 +199,22 @@ export default function Home() {
   ];
 
   const fetchAppInsights = async () => {
+    if (!activeSite) {
+      setInsights(null);
+      setLoading(false);
+      return;
+    }
+
     try {
       setLoading(true);
       
       const [keywordsRes, clustersRes, ideasRes, tasksRes, contentRes, imagesRes] = await Promise.all([
-        fetchKeywords({ page_size: 1, site_id: undefined }),
-        fetchClusters({ page_size: 1, site_id: undefined }),
-        fetchContentIdeas({ page_size: 1, site_id: undefined }),
-        fetchTasks({ page_size: 1, site_id: undefined }),
-        fetchContent({ page_size: 1, site_id: undefined }),
-        fetchContentImages({ page_size: 1, site_id: undefined })
+        fetchKeywords({ page_size: 1, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchClusters({ page_size: 1, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchContentIdeas({ page_size: 1, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchTasks({ page_size: 1, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchContent({ page_size: 1, site_id: activeSite.id, sector_id: activeSector?.id }),
+        fetchContentImages({ site_id: activeSite.id, sector_id: activeSector?.id })
       ]);
 
       const totalKeywords = keywordsRes.count || 0;
@@ -248,7 +254,7 @@ export default function Home() {
 
   useEffect(() => {
     fetchAppInsights();
-  }, [activeSite, activeSector]);
+  }, [activeSite?.id, activeSector?.id]);
 
   const chartOptions: ApexOptions = {
     chart: {