Fix up the system tray icon(s)

lib/main.dart

@@ -59,7 +59,7 @@ class MainPage extends StatefulWidget {
 }
 
 class _MainPageState extends State<MainPage> with WindowListener {
-  final AppWindow _appWindow = AppWindow();
+  // final AppWindow _appWindow = AppWindow(); // REMOVED - Not used
   final SystemTray _systemTray = SystemTray();
   final AudioPlayer _audioPlayer = AudioPlayer();
 
@@ -203,18 +203,30 @@ class _MainPageState extends State<MainPage> with WindowListener {
 
   void _saveData() {
     // TODO: Implement logic to save the current entry and todo list
-    // Example:
-    // await saveEntryToDatabase(_currentEntryController.text);
-    // await saveTodoListToFile(_todoController.text);
+    // This is called when the window is closed (hidden) or the save button is pressed.
+    String currentEntry = _currentEntryController.text;
+    String todoList = _todoController.text;
 
-    // You might want to move the '_currentEntryController.text' to become
-    // the '_previousEntryController.text' for the *next* session here or upon loading.
-
-    debugPrint(
-      "Data saved (placeholder). Previous: [...], Current: [${_currentEntryController.text.length} chars], Todo: [${_todoController.text.length} chars]",
+    print(
+      "Saving data (placeholder)... Current Entry: [${currentEntry.length} chars], Todo: [${todoList.length} chars]",
     );
+
+    // --- Your persistence logic goes here ---
+    // Example:
+    // await saveEntryToDatabase(currentEntry);
+    // await saveTodoListToFile(todoList);
+    // ---------------------------------------
+
+    // You might want to update the previous entry for the *next* session here,
+    // or handle this logic when loading data next time.
+    // Example (simplistic, assumes immediate update for next view):
+    // setState(() {
+    //   _previousEntryController.text = currentEntry;
+    //   _currentEntryController.clear(); // Clear current entry after saving
+    // });
+
     // Potentially clear current entry after saving, or handle it on next load
-    // _currentEntryController.clear();
+    // _currentEntryController.clear(); // Decide if you want to clear it immediately
   }
 
   // --- UI Build --- //
@@ -315,18 +327,18 @@ class _MainPageState extends State<MainPage> with WindowListener {
   }
 }
 
-// Helper class for AppWindow interactions (optional, but good practice)
-class AppWindow {
-  Future<void> init() async {
-    // Can add more window setup here if needed
-  }
-
-  Future<void> show() async {
-    await windowManager.show();
-    await windowManager.focus();
-  }
-
-  Future<void> hide() async {
-    await windowManager.hide();
-  }
-}
+// REMOVED - Helper class for AppWindow interactions (optional, but good practice)
+// class AppWindow {
+//   Future<void> init() async {
+//     // Can add more window setup here if needed
+//   }
+//
+//   Future<void> show() async {
+//     await windowManager.show();
+//     await windowManager.focus();
+//   }
+//
+//   Future<void> hide() async {
+//     await windowManager.hide();
+//   }
+// }