feat(chat): Messages list fill, message model

lib/presentation/chat/chat_screen/bloc/chat_state.dart

@@ -22,26 +22,18 @@ class ChatState extends Equatable {
 }
 
 class ChatLoadedState extends ChatState {
-  ChatLoadedState({
-    this.selectedDropDownValue,
-    this.chatModelObj,
-  });
-
-  SelectionPopupModel? selectedDropDownValue;
+  ChatLoadedState({this.chatModelObj, this.messages});
 
   ChatModel? chatModelObj;
+  List<ChatMessageModel>? messages;
 
   @override
-  List<Object?> get props => [
-        selectedDropDownValue,
-        chatModelObj,
-      ];
-  ChatState copyWith({
-    SelectionPopupModel? selectedDropDownValue,
-    ChatModel? chatModelObj,
-  }) {
-    return ChatState(
+  List<Object?> get props => [chatModelObj, messages];
+  ChatLoadedState copyWith(
+      {ChatModel? chatModelObj, List<ChatMessageModel>? messages}) {
+    return ChatLoadedState(
       chatModelObj: chatModelObj ?? this.chatModelObj,
+      messages: messages ?? this.messages,
     );
   }
 }