Re structure the folders of the example (#1640)

* Re structure the folders of the example

example/lib/logic/empty.dart

@@ -1 +0,0 @@
-

example/lib/main.dart

@@ -13,14 +13,14 @@ import 'package:hydrated_bloc/hydrated_bloc.dart'
 import 'package:path_provider/path_provider.dart'
     show getApplicationDocumentsDirectory;
 
-import 'presentation/home/widgets/home_screen.dart';
-import 'presentation/quill/quill_screen.dart';
-import 'presentation/quill/samples/quill_default_sample.dart';
-import 'presentation/quill/samples/quill_images_sample.dart';
-import 'presentation/quill/samples/quill_text_sample.dart';
-import 'presentation/quill/samples/quill_videos_sample.dart';
-import 'presentation/settings/cubit/settings_cubit.dart';
-import 'presentation/settings/widgets/settings_screen.dart';
+import 'screens/home/widgets/home_screen.dart';
+import 'screens/quill/quill_screen.dart';
+import 'screens/quill/samples/quill_default_sample.dart';
+import 'screens/quill/samples/quill_images_sample.dart';
+import 'screens/quill/samples/quill_text_sample.dart';
+import 'screens/quill/samples/quill_videos_sample.dart';
+import 'screens/settings/cubit/settings_cubit.dart';
+import 'screens/settings/widgets/settings_screen.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();

example/lib/screens/home/widgets/home_screen.dart

@@ -5,12 +5,13 @@ import 'package:file_picker/file_picker.dart' show FilePicker, FileType;
 import 'package:flutter/material.dart';
 import 'package:flutter_quill/flutter_quill.dart';
 
-import '../../extensions/scaffold_messenger.dart';
+import '../../../extensions/scaffold_messenger.dart';
 import '../../quill/quill_screen.dart';
 import '../../quill/samples/quill_default_sample.dart';
 import '../../quill/samples/quill_images_sample.dart';
 import '../../quill/samples/quill_text_sample.dart';
 import '../../quill/samples/quill_videos_sample.dart';
+
 import '../../settings/widgets/settings_screen.dart';
 import 'example_item.dart';
 

example/lib/screens/quill/my_quill_editor.dart

@@ -12,7 +12,7 @@ import 'package:flutter_quill_extensions/embeds/widgets/image.dart'
 import 'package:flutter_quill_extensions/flutter_quill_extensions.dart';
 import 'package:path/path.dart' as path;
 
-import '../extensions/scaffold_messenger.dart';
+import '../../extensions/scaffold_messenger.dart';
 import 'embeds/timestamp_embed.dart';
 
 class MyQuillEditor extends StatelessWidget {

example/lib/screens/quill/my_quill_toolbar.dart

@@ -204,7 +204,7 @@ class MyQuillToolbar extends StatelessWidget {
             multiRowsDisplay: true,
             buttonOptions: QuillSimpleToolbarButtonOptions(
               base: QuillToolbarBaseButtonOptions(
-                  afterButtonPressed: focusNode.requestFocus
+                afterButtonPressed: focusNode.requestFocus,
                 // globalIconSize: 20,
                 // iconTheme: QuillIconTheme(
                 //   iconButtonSelectedData: IconButtonData(

example/lib/screens/quill/quill_screen.dart

@@ -7,7 +7,7 @@ import 'package:flutter_quill_extensions/flutter_quill_extensions.dart'
 import 'package:quill_html_converter/quill_html_converter.dart';
 import 'package:share_plus/share_plus.dart' show Share;
 
-import '../extensions/scaffold_messenger.dart';
+import '../../extensions/scaffold_messenger.dart';
 import '../shared/widgets/home_screen_button.dart';
 import 'my_quill_editor.dart';
 import 'my_quill_toolbar.dart';