Add new channels to UI when created and update connecting status logic

src/Decho/Services/ConnectionService.cs

@@ -778,7 +778,22 @@ public sealed class ConnectionService : IDisposable
         {
             ChannelModel? existing = entry.Server.Channels.FirstOrDefault(c =>
                 string.Equals(c.Name, channel.Name, StringComparison.OrdinalIgnoreCase));
-            _ = existing?.Topic = channel.Topic;
+            if (existing is not null)
+            {
+                _ = existing.Topic = channel.Topic;
+            }
+            else
+            {
+                var model = new ChannelModel(
+                    channel.Id.ToString(),
+                    channel.Name,
+                    [],
+                    channel.Topic,
+                    channel.IsPublic,
+                    channel.IsProtected);
+                entry.Server.Channels.Add(model);
+                ChannelAdded?.Invoke(entry.Server.ServerUrl, model);
+            }
         };
 
         conn.ForceDisconnected += reason =>
@@ -796,7 +811,7 @@ public sealed class ConnectionService : IDisposable
         conn.ConnectionStatusChanged += status =>
         {
             entry.Server.IsConnected = status == "Connected";
-            entry.Server.IsConnecting = status is "Connecting..." or "Authenticating...";
+            entry.Server.IsConnecting = status is "Connecting..." or "Authenticating..." or "Reconnecting...";
             ServerStateChanged?.Invoke(entry.Server);
         };
     }

src/Decho/ViewModels/MainWindowViewModel.cs

@@ -625,6 +625,18 @@ public sealed class MainWindowViewModel : ViewModelBase
                 StatusText = $"Error: {error}";
             });
         };
+
+        ConnectionService.ChannelAdded += (serverUrl, channel) =>
+        {
+            Avalonia.Threading.Dispatcher.UIThread.Post(() =>
+            {
+                ServerViewModel? serverVm = Sidebar.GetServer(serverUrl);
+                if (serverVm is not null && serverVm.Channels.All(c => c.Name != channel.Name))
+                {
+                    serverVm.Channels.Add(new ChannelViewModel(channel));
+                }
+            });
+        };
     }
 
     private async Task RefreshOnlineUsersAsync(string serverUrl, string channelName)

src/Decho/ViewModels/ServerViewModel.cs

@@ -100,6 +100,7 @@ public sealed class ServerViewModel : ViewModelBase
         {
             _ = this.RaiseAndSetIfChanged(ref _isConnecting, value);
             this.RaisePropertyChanged(nameof(ConnectionStatusText));
+            this.RaisePropertyChanged(nameof(ConnectionStatusColor));
             this.RaisePropertyChanged(nameof(ShowConnectionControls));
         }
     }

src/Decho/Views/OnlineUsersView.axaml

@@ -11,7 +11,7 @@
             <TextBlock FontWeight="Bold"
                        FontSize="13"
                        Margin="8 6"
-                       Text="{Binding OnlineUserCount, StringFormat='Online — {0}'}" />
+                       Text="{Binding OnlineUserCount, StringFormat='Users - {0}'}" />
             <ItemsControl ItemsSource="{Binding OnlineUsers}">
                 <ItemsControl.ItemTemplate>
                     <DataTemplate x:DataType="vm:UserViewModel">