Floating NavBar

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

lib/pages/setting/models/style_settings.dart

@@ -106,7 +106,7 @@ List<SettingsModel> get styleSettings => [
   ),
   const SwitchModel(
     title: '优化平板导航栏',
-    leading: Icon(MdiIcons.soundbar),
+    leading: Icon(Icons.auto_fix_high),
     setKey: SettingBoxKey.optTabletNav,
     defaultVal: true,
     needReboot: true,
@@ -119,6 +119,13 @@ List<SettingsModel> get styleSettings => [
     defaultVal: true,
     needReboot: true,
   ),
+  const SwitchModel(
+    title: '悬浮底栏',
+    leading: Icon(MdiIcons.soundbar),
+    setKey: SettingBoxKey.floatingNavBar,
+    defaultVal: false,
+    needReboot: true,
+  ),
   NormalModel(
     leading: const Icon(Icons.calendar_view_week_outlined),
     title: '列表宽度（dp）限制',