Missing export: ReactionGroupData class is not publicly accessible

[andrewmikhniuk]

Missing export: ReactionGroupData class is not publicly accessible

Description

The ReactionGroupData class is used internally by the ActivityData, but it's not exported in the public API.

Current Behavior

When trying to use ReactionGroupData in code:

import 'package:stream_feeds/stream_feeds.dart';

// This fails because ReactionGroupData is not exported
final Map<String, ReactionGroupData> reactionGroups = activityData.reactionGroups;

The code fails to compile with an error indicating that ReactionGroupData is undefined.

Expected Behavior

The ReactionGroupData class should be publicly accessible since it's part of the public API contract of the ActivityData class.

Environment

• Package version: stream_feeds ^0.4.0