Add Windows runner files for high DPI support and console output

- Created runner.exe.manifest to enable DPI awareness and dark mode support.
- Implemented utility functions in utils.cpp and utils.h for console creation and command line argument handling.
- Developed Win32Window class in win32_window.cpp and win32_window.h to manage high DPI-aware windows, including theme updates and message handling.

lib/app.dart

@@ -0,0 +1,63 @@
+import 'package:flutter/material.dart';
+import 'package:notas/platform/app_platform.dart';
+import 'package:notas/screens/home_screen.dart';
+import 'package:notas/theme/app_theme.dart';
+import 'package:notas/platform/window_state.dart';
+import 'package:window_manager/window_manager.dart';
+
+class NotesApp extends StatefulWidget {
+  const NotesApp({super.key});
+
+  @override
+  State<NotesApp> createState() => _NotesAppState();
+}
+
+class _NotesAppState extends State<NotesApp> with WindowListener {
+  @override
+  void initState() {
+    super.initState();
+    if (isDesktop) {
+      windowManager.addListener(this);
+    }
+  }
+
+  @override
+  void dispose() {
+    if (isDesktop) {
+      windowManager.removeListener(this);
+    }
+    super.dispose();
+  }
+
+  Future<void> _saveWindowSize() async {
+    if (await windowManager.isFullScreen()) {
+      return;
+    }
+
+    if (await windowManager.isMaximized()) {
+      return;
+    }
+
+    final Size currentSize = await windowManager.getSize();
+    await WindowStateStore.instance.saveWindowSize(currentSize);
+  }
+
+  @override
+  void onWindowResize() {
+    _saveWindowSize();
+  }
+
+  @override
+  void onWindowResized() {
+    _saveWindowSize();
+  }
+
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Mis Notas',
+      debugShowCheckedModeBanner: false,
+      theme: AppTheme.theme,
+      home: const HomeScreen(),
+    );
+  }
+}