neon_news, neon_notes: use records in dialogs

packages/neon/neon_news/lib/dialogs/add_feed.dart

@@ -22,7 +22,7 @@ class _NewsAddFeedDialogState extends State<NewsAddFeedDialog> {
 
   void submit() {
     if (formKey.currentState!.validate()) {
-      Navigator.of(context).pop([controller.text, widget.folderID ?? folder?.id]);
+      Navigator.of(context).pop((controller.text, widget.folderID ?? folder?.id));
     }
   }
 

packages/neon/neon_news/lib/widgets/feed_floating_action_button.dart

@@ -13,7 +13,7 @@ class NewsFeedFloatingActionButton extends StatelessWidget {
   @override
   Widget build(final BuildContext context) => FloatingActionButton(
         onPressed: () async {
-          final result = await showDialog<List>(
+          final result = await showDialog<(String, int?)>(
             context: context,
             builder: (final context) => NewsAddFeedDialog(
               bloc: bloc,
@@ -21,7 +21,8 @@ class NewsFeedFloatingActionButton extends StatelessWidget {
             ),
           );
           if (result != null) {
-            bloc.addFeed(result[0] as String, result[1] as int?);
+            final (url, folderId) = result;
+            bloc.addFeed(url, folderId);
           }
         },
         tooltip: AppLocalizations.of(context).feedAdd,

packages/neon/neon_notes/lib/dialogs/create_note.dart

@@ -21,7 +21,7 @@ class _NotesCreateNoteDialogState extends State<NotesCreateNoteDialog> {
 
   void submit() {
     if (formKey.currentState!.validate()) {
-      Navigator.of(context).pop([controller.text, widget.category ?? selectedCategory]);
+      Navigator.of(context).pop((controller.text, widget.category ?? selectedCategory));
     }
   }
 

packages/neon/neon_notes/lib/widgets/notes_floating_action_button.dart

@@ -13,7 +13,7 @@ class NotesFloatingActionButton extends StatelessWidget {
   @override
   Widget build(final BuildContext context) => FloatingActionButton(
         onPressed: () async {
-          final result = await showDialog<List>(
+          final result = await showDialog<(String, String?)>(
             context: context,
             builder: (final context) => NotesCreateNoteDialog(
               bloc: bloc,
@@ -21,9 +21,10 @@ class NotesFloatingActionButton extends StatelessWidget {
             ),
           );
           if (result != null) {
+            final (title, category) = result;
             bloc.createNote(
-              title: result[0] as String,
-              category: result[1] as String? ?? '',
+              title: title,
+              category: category ?? '',
             );
           }
         },