mod: opt tablet nav option

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/main/view.dart

@@ -204,7 +204,7 @@ class _MainAppState extends State<MainApp>
               if (useSideBar || !isPortrait) ...[
                 Obx(
                   () => _mainController.navigationBars.length > 1
-                      ? context.isTablet
+                      ? context.isTablet && GStorage.optTabletNav
                           ? Column(
                               children: [
                                 SizedBox(

lib/pages/setting/widgets/model.dart

@@ -203,6 +203,14 @@ List<SettingsModel> get styleSettings => [
           }
         },
       ),
+      SettingsModel(
+        settingsType: SettingsType.sw1tch,
+        title: '优化平板导航栏',
+        leading: Icon(MdiIcons.soundbar),
+        setKey: SettingBoxKey.optTabletNav,
+        defaultVal: true,
+        needReboot: true,
+      ),
       SettingsModel(
         settingsType: SettingsType.sw1tch,
         title: 'MD3样式底栏',