two minor bugfixes

- the remaining turn time now properly is zero when there are no users in the queue
- the chat history is now in the correct order

collab-vm-server-1.3/TurnQueue.cs

@@ -56,6 +56,9 @@ public class TurnQueue
             if (!queue.TryPeek(out var u)) return;
             Utilities.Log(LogLevel.DEBUG, $"It is now {u.Username}'s turn");
             currentTurnRemainingTime = turnTime;
+        } else {
+            timer.Stop();
+            currentTurnRemainingTime = 0;
         }
         SendTurnUpdate();
     }
@@ -116,6 +119,7 @@ public class TurnQueue
         if (queue.Count == 0)
         {
             timer.Stop();
+            currentTurnRemainingTime = 0;
         }
         SendTurnUpdate();
     }

collab-vm-server-1.3/User.cs

@@ -166,7 +166,7 @@ public class User
                 await this.vm.AddUser(this);
                 List<string> chatmsg = new();
                 chatmsg.Add("chat");
-                foreach (ChatMessage msg in vm.ChatHistory)
+                foreach (ChatMessage msg in vm.ChatHistory.ToArray())
                 {
                     chatmsg.Add(msg.Username);
                     chatmsg.Add(msg.Message);

collab-vm-server-1.3/VM.cs

@@ -160,7 +160,7 @@ public class VM
             else
                 await u.SendChat(user.Username!, messageSanitized);
         }
-        ChatHistory.PushFront(new ChatMessage {Username = user.Username!, Message = messageSanitized});
+        ChatHistory.PushBack(new ChatMessage {Username = user.Username!, Message = messageSanitized});
     }
 
     public async Task SendMouse(int x, int y, int mask)