feat: integrate Flutter Quill for rich text editing and update note handling

- Added Flutter Quill package for rich text editing capabilities.
- Refactored note body handling to support Quill's Document format.
- Updated note editor screen to use QuillEditor and QuillController.
- Enhanced note search functionality to convert note body to plain text.
- Modified note card display to show plain text from note body.
- Updated localization support for Quill in the app.
- Registered necessary plugins for URL launching and file selection on all platforms.
- Updated app icons and other assets for consistency across platforms.
- Updated pubspec.yaml and pubspec.lock to include new dependencies and versions.

linux/flutter/generated_plugin_registrant.cc

@@ -8,6 +8,7 @@
 
 #include <flutter_secure_storage_linux/flutter_secure_storage_linux_plugin.h>
 #include <screen_retriever_linux/screen_retriever_linux_plugin.h>
+#include <url_launcher_linux/url_launcher_plugin.h>
 #include <window_manager/window_manager_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
@@ -17,6 +18,9 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) screen_retriever_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "ScreenRetrieverLinuxPlugin");
   screen_retriever_linux_plugin_register_with_registrar(screen_retriever_linux_registrar);
+  g_autoptr(FlPluginRegistrar) url_launcher_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "UrlLauncherPlugin");
+  url_launcher_plugin_register_with_registrar(url_launcher_linux_registrar);
   g_autoptr(FlPluginRegistrar) window_manager_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "WindowManagerPlugin");
   window_manager_plugin_register_with_registrar(window_manager_registrar);

linux/flutter/generated_plugins.cmake

@@ -5,6 +5,7 @@
 list(APPEND FLUTTER_PLUGIN_LIST
   flutter_secure_storage_linux
   screen_retriever_linux
+  url_launcher_linux
   window_manager
 )