feat:增加日程模块

lib/main.dart

@@ -14,7 +14,7 @@ class TaskHubApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return FluentApp(
-      title: 'TaskHub - 待办清单',
+      title: 'TaskHub',
       themeMode: ThemeMode.system,
       theme: FluentThemeData(
         fontFamily: 'CustomFont',
@@ -38,22 +38,16 @@ class _MainLayoutState extends State<MainLayout> {
   @override
   Widget build(BuildContext context) {
     return NavigationView(
+      titleBar: TitleBar(
+        icon: const FlutterLogo(),
+        title: const Text('TaskHub')
+      ),
       pane: NavigationPane(
         selected: _currentIndex,
         onChanged: (index) => setState(() => _currentIndex = index),
         size: NavigationPaneSize(
           openWidth: 150
         ),
-        header: const Padding(
-          padding: EdgeInsets.all(10),
-          child: Text(
-            'TaskHub',
-            style: TextStyle(
-              fontSize: 20,
-              fontWeight: FontWeight.bold,
-            ),
-          ),
-        ),
         items: [
           PaneItem(
             icon: const Icon(FluentIcons.home),