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.

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -0,0 +1,16 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import screen_retriever_macos
+import shared_preferences_foundation
+import window_manager
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  ScreenRetrieverMacosPlugin.register(with: registry.registrar(forPlugin: "ScreenRetrieverMacosPlugin"))
+  SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
+  WindowManagerPlugin.register(with: registry.registrar(forPlugin: "WindowManagerPlugin"))
+}