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.

lib/screens/home_screen.dart

@@ -5,6 +5,7 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 
+import 'package:notas/data/note_body.dart';
 import 'package:notas/data/note_repository.dart';
 import 'package:notas/models/note.dart';
 import 'package:notas/screens/note_editor_screen.dart';
@@ -290,7 +291,7 @@ class _HomeScreenState extends State<HomeScreen> {
         .where(
           (Note note) =>
               note.title.toLowerCase().contains(query) ||
-              note.body.toLowerCase().contains(query),
+              noteBodyToPlainText(note.body).toLowerCase().contains(query),
         )
         .toList();
   }
@@ -713,7 +714,7 @@ class _DraggableNote extends StatelessWidget {
               ),
               const SizedBox(height: 8),
               Text(
-                note.body,
+                noteBodyToPlainText(note.body),
                 style: TextStyle(color: palette.textSecondary, fontSize: 14),
                 maxLines: 20,
                 overflow: TextOverflow.clip,