chore(claude-do): Update notif popup is still not in the bottom Right hand cor

THe update notification should be in the Bottom Rught hand corner as a Small Popup card. IT should have the Update and Dismiss Butotns. It should only show when there is a new Update available, not if everything is up to date

ClaudeDo-Task: c14606f009e44e4ba04bfe5bcbc884ad

src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs

@@ -97,7 +97,6 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
 
     [ObservableProperty] private bool _isUpdateBannerVisible;
     [ObservableProperty] private string? _updateBannerLatestVersion;
-    [ObservableProperty] private string? _inlineUpdateStatus;
     private bool _bannerDismissedThisSession;
 
     [ObservableProperty]
@@ -305,25 +304,15 @@ public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
                 if (_bannerDismissedThisSession) { IsUpdateBannerVisible = false; break; }
                 UpdateBannerLatestVersion = _updateCheck.LatestVersion;
                 IsUpdateBannerVisible = true;
-                InlineUpdateStatus = null;
                 break;
             case UpdateCheckStatus.UpToDate:
                 IsUpdateBannerVisible = false;
-                ShowInlineStatus($"You're up to date (v{_updateCheck.CurrentVersion})");
                 break;
             case UpdateCheckStatus.CheckFailed:
-                ShowInlineStatus("Could not check for updates");
                 break;
         }
     }
 
-    private async void ShowInlineStatus(string text)
-    {
-        InlineUpdateStatus = text;
-        await Task.Delay(3000);
-        if (InlineUpdateStatus == text) InlineUpdateStatus = null;
-    }
-
     [RelayCommand]
     private void OpenMissionControl()
     {