Fix sidebar showing yellow icons when starting minimized to tray

Driver detection (ViGEm, HidHide, vJoy, MIDI Services) and the 5-second
refresh timer were initialized inside OnLoaded, which never fires when
starting minimized to tray (Show() is skipped). Moved driver detection
and timer setup to the constructor so they run before the sidebar is
built, ensuring correct power icon colors on all startup modes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: hifihedgehog

PadForge.App/MainWindow.xaml.cs

@@ -661,6 +661,16 @@ await RunDriverOperationAsync(
             if (_inputService.EnsureTypeGroupOrder(silent: true))
                 _settingsService.MarkDirty();
 
+            // Detect drivers early (before sidebar rebuild) so power icons show correct
+            // colors even when starting minimized to tray (where OnLoaded never fires).
+            RefreshViGEmStatus();
+            _previousViGEmInstalled = _viewModel.Dashboard.IsViGEmInstalled;
+            RefreshHidHideStatus();
+            RefreshVJoyStatus();
+            _previousVJoyInstalled = _viewModel.Dashboard.IsVJoyInstalled;
+            RefreshMidiServicesStatus();
+            StartDriverStatusTimer();
+
             // Populate sidebar and dashboard with saved slots regardless of engine state,
             // so virtual controllers are visible for configuration even when the engine is off.
             _viewModel.RefreshNavControllerItems();
@@ -682,31 +692,9 @@ await RunDriverOperationAsync(
         //  Lifecycle
         // ─────────────────────────────────────────────
 
-        private void OnLoaded(object sender, RoutedEventArgs e)
+        private void StartDriverStatusTimer()
         {
-            // Settings and tray icon are already initialized in the constructor
-            // (before Show) so that App.OnStartup can decide whether to show the window.
-
-            // Populate diagnostic info.
-            _viewModel.Settings.ApplicationVersion =
-                System.Reflection.Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "1.0.0";
-            _viewModel.Settings.RuntimeVersion = Environment.Version.ToString();
-
-            // Detect ViGEmBus driver.
-            RefreshViGEmStatus();
-            _previousViGEmInstalled = _viewModel.Dashboard.IsViGEmInstalled;
-
-            // Detect HidHide driver.
-            RefreshHidHideStatus();
-
-            // Detect vJoy driver.
-            RefreshVJoyStatus();
-            _previousVJoyInstalled = _viewModel.Dashboard.IsVJoyInstalled;
-
-            // Detect MIDI Services.
-            RefreshMidiServicesStatus();
-
-            // Periodically refresh driver install states (every 5 seconds).
+            if (_driverStatusTimer != null) return;
             _driverStatusTimer = new System.Windows.Threading.DispatcherTimer
             {
                 Interval = TimeSpan.FromSeconds(5)
@@ -753,6 +741,17 @@ private void OnLoaded(object sender, RoutedEventArgs e)
                 }
             };
             _driverStatusTimer.Start();
+        }
+
+        private void OnLoaded(object sender, RoutedEventArgs e)
+        {
+            // Driver detection and timer are initialized in the constructor so they
+            // work even when starting minimized to tray (where OnLoaded never fires).
+
+            // Populate diagnostic info.
+            _viewModel.Settings.ApplicationVersion =
+                System.Reflection.Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "1.0.0";
+            _viewModel.Settings.RuntimeVersion = Environment.Version.ToString();
 
             // Check SDL3.dll availability.
             try