Updated app with modfications and new UI for graphs

lib/screens/book_screen.dart

@@ -249,43 +249,14 @@ Color _getColorFromName(String colorName) {
   void _openFolderTargetView(String folderName) async {
     final targetFiles = _groupedFiles[folderName] ?? [];
 
-    List<Map<String, dynamic>> allBullets = [];
-    String latestDate = 'Unknown';
-
-    for (var file in targetFiles) {
-      final jsonString = await file.readAsString();
-      final data = jsonDecode(jsonString);
-
-      final bullets = (data['bullets'] as List)
-          .map((b) => {'x': b['x'], 'y': b['y']})
-          .toList();
-
-      allBullets.addAll(bullets);
-
-      if (data['date'] != null) {
-        latestDate = data['date']; // You could sort if you want the most recent
-      }
-    }
-
-    // Create combined JSON structure
-    final combinedJson = jsonEncode({
-      'date': latestDate,
-      'bullets': allBullets,
-    });
-
-    // Save this JSON temporarily to disk
-    final tempDir = await getTemporaryDirectory();
-    final combinedFile = File('${tempDir.path}/combined_${folderName}.json');
-    await combinedFile.writeAsString(combinedJson);
-
-    // Navigate to view screen with the combined file
+    // Navigate to view screen with all individual files
     Navigator.push(
       context,
       MaterialPageRoute(
         builder: (context) => TargetViewScreen(
-          jsonFiles: [combinedFile], // treat it like a normal file
+          jsonFiles: targetFiles, // Pass all individual files
           refreshFolders: _loadTargetDataFiles,
-          isCombinedView: true, // 👈 This line
+          isCombinedView: true, // 👈 This signals combined/folder view
         ),
       ),
     );