[Thread Detail] [Part 1] TF-3639 data layer and controller (#3645)

lib/features/thread_detail/presentation/model/thread_detail_arguments.dart

@@ -0,0 +1,11 @@
+import 'package:equatable/equatable.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+
+class ThreadDetailArguments with EquatableMixin {
+  final ThreadId threadId;
+
+  const ThreadDetailArguments({required this.threadId});
+
+  @override
+  List<Object?> get props => [threadId];
+}