style(neon): export LabelBuilder from sort_box and settings

packages/neon/neon/lib/settings.dart

@@ -1,3 +1,4 @@
+export 'package:neon/src/models/label_builder.dart';
 export 'package:neon/src/settings/models/nextcloud_app_options.dart';
 export 'package:neon/src/settings/models/options_category.dart';
 export 'package:neon/src/settings/models/select_option.dart';

packages/neon/neon/lib/sort_box.dart

@@ -1,3 +1,4 @@
+export 'package:neon/src/models/label_builder.dart';
 export 'package:neon/src/sort_box/sort_box_builder.dart';
 export 'package:neon/src/sort_box/sort_box_order_option_values.dart';
 export 'package:sort_box/sort_box.dart';

packages/neon/neon/lib/src/models/label_builder.dart

@@ -1,5 +1,3 @@
 import 'package:flutter/widgets.dart';
-import 'package:meta/meta.dart';
 
-@internal
 typedef LabelBuilder = String Function(BuildContext);

packages/neon/neon/lib/src/settings/models/option.dart

@@ -2,9 +2,9 @@ import 'dart:async';
 
 import 'package:flutter/foundation.dart';
 import 'package:meta/meta.dart';
+import 'package:neon/src/models/label_builder.dart';
 import 'package:neon/src/settings/models/options_category.dart';
 import 'package:neon/src/settings/models/storage.dart';
-import 'package:neon/src/settings/widgets/label_builder.dart';
 import 'package:rxdart/rxdart.dart';
 
 @internal

packages/neon/neon/lib/src/settings/models/options_category.dart

@@ -1,4 +1,4 @@
-import 'package:neon/src/settings/widgets/label_builder.dart';
+import 'package:neon/src/models/label_builder.dart';
 
 class OptionsCategory {
   OptionsCategory({

packages/neon/neon/lib/src/settings/models/select_option.dart

@@ -1,8 +1,8 @@
 import 'dart:async';
 
 import 'package:collection/collection.dart';
+import 'package:neon/src/models/label_builder.dart';
 import 'package:neon/src/settings/models/option.dart';
-import 'package:neon/src/settings/widgets/label_builder.dart';
 
 class SelectOption<T> extends Option<T> {
   /// Creates a SelectOption

packages/neon/neon/lib/src/sort_box/sort_box_order_option_values.dart

@@ -1,5 +1,5 @@
 import 'package:neon/l10n/localizations.dart';
-import 'package:neon/src/settings/widgets/label_builder.dart';
+import 'package:neon/src/models/label_builder.dart';
 import 'package:sort_box/sort_box.dart';
 
 final sortBoxOrderOptionValues = <SortBoxOrder, LabelBuilder>{