fix flutter3 warning upgrade dependencies

flutter/lib/models/chat_model.dart

@@ -1,6 +1,6 @@
 import 'dart:convert';
 
-import 'package:dash_chat/dash_chat.dart';
+import 'package:dash_chat_2/dash_chat_2.dart';
 import 'package:flutter/material.dart';
 
 import '../widgets/overlay.dart';
@@ -11,8 +11,8 @@ class MessageBody {
   List<ChatMessage> chatMessages;
   MessageBody(this.chatUser, this.chatMessages);
 
-  void add(ChatMessage cm) {
-    this.chatMessages.add(cm);
+  void insert(ChatMessage cm) {
+    this.chatMessages.insert(0, cm);
   }
 
   void clear() {
@@ -24,19 +24,15 @@ class ChatModel with ChangeNotifier {
   static final clientModeID = -1;
 
   final ChatUser me = ChatUser(
-    uid: "",
-    name: "Me",
+    id: "",
+    firstName: "Me",
   );
 
   late final Map<int, MessageBody> _messages = Map()
     ..[clientModeID] = MessageBody(me, []);
 
-  final _scroller = ScrollController();
-
   var _currentID = clientModeID;
 
-  ScrollController get scroller => _scroller;
-
   Map<int, MessageBody> get messages => _messages;
 
   int get currentID => _currentID;
@@ -62,8 +58,8 @@ class ChatModel with ChangeNotifier {
             "Failed to changeCurrentID,remote user doesn't exist");
       }
       final chatUser = ChatUser(
-        uid: client.peerId,
-        name: client.name,
+        id: client.peerId,
+        firstName: client.name,
       );
       _messages[id] = MessageBody(chatUser, []);
       _currentID = id;
@@ -80,48 +76,39 @@ class ChatModel with ChangeNotifier {
     late final chatUser;
     if (id == clientModeID) {
       chatUser = ChatUser(
-        name: FFI.ffiModel.pi.username,
-        uid: FFI.getId(),
+        firstName: FFI.ffiModel.pi.username,
+        id: FFI.getId(),
       );
     } else {
       final client = FFI.serverModel.clients[id];
       if (client == null) {
         return debugPrint("Failed to receive msg,user doesn't exist");
       }
-      chatUser = ChatUser(uid: client.peerId, name: client.name);
+      chatUser = ChatUser(id: client.peerId, firstName: client.name);
     }
 
     if (!_messages.containsKey(id)) {
       _messages[id] = MessageBody(chatUser, []);
     }
-    _messages[id]!.add(ChatMessage(text: text, user: chatUser));
+    _messages[id]!.insert(
+        ChatMessage(text: text, user: chatUser, createdAt: DateTime.now()));
     _currentID = id;
     notifyListeners();
-    scrollToBottom();
-  }
-
-  scrollToBottom() {
-    Future.delayed(Duration(milliseconds: 500), () {
-      _scroller.animateTo(_scroller.position.maxScrollExtent,
-          duration: Duration(milliseconds: 200),
-          curve: Curves.fastLinearToSlowEaseIn);
-    });
   }
 
   send(ChatMessage message) {
-    if (message.text != null && message.text!.isNotEmpty) {
-      _messages[_currentID]?.add(message);
+    if (message.text.isNotEmpty) {
+      _messages[_currentID]?.insert(message);
       if (_currentID == clientModeID) {
-        FFI.setByName("chat_client_mode", message.text!);
+        FFI.setByName("chat_client_mode", message.text);
       } else {
         final msg = Map()
           ..["id"] = _currentID
-          ..["text"] = message.text!;
+          ..["text"] = message.text;
         FFI.setByName("chat_server_mode", jsonEncode(msg));
       }
     }
     notifyListeners();
-    scrollToBottom();
   }
 
   close() {

flutter/lib/pages/chat_page.dart

@@ -1,4 +1,4 @@
-import 'package:dash_chat/dash_chat.dart';
+import 'package:dash_chat_2/dash_chat_2.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hbb/common.dart';
 import 'package:flutter_hbb/models/chat_model.dart';
@@ -23,7 +23,7 @@ class ChatPage extends StatelessWidget implements PageShape {
             final id = entry.key;
             final user = entry.value.chatUser;
             return PopupMenuItem<int>(
-              child: Text("${user.name}   ${user.uid}"),
+              child: Text("${user.firstName}   ${user.id}"),
               value: id,
             );
           }).toList();
@@ -44,19 +44,24 @@ class ChatPage extends StatelessWidget implements PageShape {
               return Stack(
                 children: [
                   DashChat(
-                    inputContainerStyle: BoxDecoration(color: Colors.white70),
-                    sendOnEnter: false,
-                    // if true,reload keyboard everytime,need fix
                     onSend: (chatMsg) {
                       chatModel.send(chatMsg);
                     },
-                    user: chatModel.me,
+                    currentUser: chatModel.me,
                     messages:
                         chatModel.messages[chatModel.currentID]?.chatMessages ??
                             [],
-                    // default scrollToBottom has bug https://github.com/fayeed/dash_chat/issues/53
-                    scrollToBottom: false,
-                    scrollController: chatModel.scroller,
+                    messageOptions: MessageOptions(
+                        showOtherUsersAvatar: false,
+                        showTime: true,
+                        messageDecorationBuilder: (_, __, ___) =>
+                            defaultMessageDecoration(
+                              color: MyTheme.accent80,
+                              borderTopLeft: 8,
+                              borderTopRight: 8,
+                              borderBottomRight: 8,
+                              borderBottomLeft: 8,
+                            )),
                   ),
                   chatModel.currentID == ChatModel.clientModeID
                       ? SizedBox.shrink()
@@ -68,7 +73,7 @@ class ChatPage extends StatelessWidget implements PageShape {
                                   color: MyTheme.accent80),
                               SizedBox(width: 5),
                               Text(
-                                "${currentUser.name ?? ""}   ${currentUser.uid ?? ""}",
+                                "${currentUser.firstName}   ${currentUser.id}",
                                 style: TextStyle(color: MyTheme.accent50),
                               ),
                             ],