Add minimize and maximize buttons to windows build

lib/areas/application/widgets/application_titlebar.dart

@@ -13,6 +13,8 @@ import 'application_titlebar_close_button.dart';
 import 'application_titlebar_hierarchy_visibility_toggle.dart';
 import 'application_titlebar_hot_reload_warning.dart';
 import 'application_titlebar_license.dart';
+import 'application_titlebar_maximize_button.dart';
+import 'application_titlebar_minimize_button.dart';
 import 'application_titlebar_update_available.dart';
 
 class ApplicationTitlebar extends ConsumerWidget {
@@ -24,14 +26,16 @@ class ApplicationTitlebar extends ConsumerWidget {
 
     List<Widget> build() {
       if (currentMode == ApplicationMode.welcomeScreen || currentMode == ApplicationMode.communicationError) {
-        return [const Spacer(), const ApplicationTitlebarUpdateAvailable(), const ApplicationTitlebarCloseButton()];
+        return [const Spacer(), const ApplicationTitlebarUpdateAvailable(), const ApplicationTitlebarMinimizeButton(), const ApplicationTitlebarMaximizeButton(), const ApplicationTitlebarCloseButton()];
       }
 
       if (currentMode == ApplicationMode.settings) {
         return [
           const SizedBox(width: 12),
           ...buildApplicationTitle(context),
           const Spacer(),
+          const ApplicationTitlebarMinimizeButton(),
+          const ApplicationTitlebarMaximizeButton(),
           const ApplicationTitlebarCloseButton()
         ];
       }
@@ -49,6 +53,8 @@ class ApplicationTitlebar extends ConsumerWidget {
         const SizedBox(width: 16),
         const ApplicationTitlebarFeatures(),
         const ApplicationTitlebarFeedback(),
+        const ApplicationTitlebarMinimizeButton(),
+        const ApplicationTitlebarMaximizeButton(),
         const ApplicationTitlebarCloseButton()
       ];
     }

lib/areas/application/widgets/application_titlebar_maximize_button.dart

@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:window_manager/window_manager.dart';
+
+class ApplicationTitlebarMaximizeButton extends ConsumerStatefulWidget {
+  const ApplicationTitlebarMaximizeButton({super.key});
+
+  @override
+  ConsumerState<ApplicationTitlebarMaximizeButton> createState() => _ApplicationTitlebarMaximizeButtonState();
+}
+
+class _ApplicationTitlebarMaximizeButtonState extends ConsumerState<ApplicationTitlebarMaximizeButton>
+    with WindowListener {
+  bool _isMaximized = false;
+
+  @override
+  void initState() {
+    super.initState();
+    windowManager.addListener(this);
+    _updateMaximizedState();
+  }
+
+  @override
+  void dispose() {
+    windowManager.removeListener(this);
+    super.dispose();
+  }
+
+  @override
+  void onWindowMaximize() {
+    setState(() {
+      _isMaximized = true;
+    });
+  }
+
+  @override
+  void onWindowUnmaximize() {
+    setState(() {
+      _isMaximized = false;
+    });
+  }
+
+  Future<void> _updateMaximizedState() async {
+    final isMaximized = await windowManager.isMaximized();
+    setState(() {
+      _isMaximized = isMaximized;
+    });
+  }
+
+  Future<void> _toggleMaximize() async {
+    if (_isMaximized) {
+      await windowManager.unmaximize();
+    } else {
+      await windowManager.maximize();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+        icon: Icon(
+            _isMaximized ? Symbols.fullscreen_exit_rounded : Symbols.fullscreen_rounded,
+            color: Theme.of(context).colorScheme.onSurfaceVariant),
+        onPressed: _toggleMaximize);
+  }
+}

lib/areas/application/widgets/application_titlebar_minimize_button.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:window_manager/window_manager.dart';
+
+class ApplicationTitlebarMinimizeButton extends ConsumerWidget {
+  const ApplicationTitlebarMinimizeButton({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return IconButton(
+        icon: Icon(Symbols.minimize_rounded, color: Theme.of(context).colorScheme.onSurfaceVariant),
+        onPressed: windowManager.minimize);
+  }
+}