docs: v5 (#1341)

* feat: version docs and add stream_member_list_controller docs

* feat: add member list and grid doc

* exported extensions on ui package

* feat: add first version of v5 migration guide

* docs: grammar fixes and other v5 release details

* docs: add additional v5 migration info

* update WrapAttachmentWidget doc

* add back v4 migration guide

* docs(doc): add customize_attachment_picker_modal.mdx guide. (#1343)

Signed-off-by: xsahil03x <[email protected]>

Signed-off-by: xsahil03x <[email protected]>

* update link for attachment picker guide

* update share_plus

Signed-off-by: xsahil03x <[email protected]>
Co-authored-by: Gordon Hayes <[email protected]>
Co-authored-by: Sahil Kumar <[email protected]>

packages/stream_chat_flutter/lib/src/message_widget/reactions/desktop_reactions_builder.dart

@@ -2,7 +2,6 @@ import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_portal/flutter_portal.dart';
-import 'package:stream_chat_flutter/src/utils/extensions.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 // ignore_for_file: cascade_invocations

packages/stream_chat_flutter/lib/src/message_widget/reactions/message_reactions_modal.dart

@@ -2,7 +2,6 @@ import 'dart:ui';
 
 import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/src/message_widget/reactions/reaction_bubble.dart';
-import 'package:stream_chat_flutter/src/utils/extensions.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 /// {@template streamMessageReactionsModal}

packages/stream_chat_flutter/lib/src/message_widget/reactions/reaction_picker.dart

@@ -1,6 +1,5 @@
 import 'package:ezanimation/ezanimation.dart';
 import 'package:flutter/material.dart';
-import 'package:stream_chat_flutter/src/utils/extensions.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 /// {@template streamReactionPicker}