style(nav): 对齐四 Tab 底栏布局规格

lib/pages/home/home_view.dart

@@ -16,7 +16,6 @@ import '../../core/data/services/category_controller.dart';
 import '../../core/platform/haptics.dart';
 import '../../core/theme/app_colors.dart';
 import '../../core/theme/app_theme.dart';
-import '../../core/widgets/app_bottom_nav.dart';
 import '../../core/widgets/app_root_tab.dart';
 import '../../core/widgets/catalog_debug_info.dart';
 import '../../core/widgets/catalog_endpoint_editor.dart';
@@ -262,7 +261,6 @@ class _HomeTabsState extends State<_HomeTabs> {
   }
 
   Widget _scaffold(BuildContext context) {
-    final l10n = AppLocalizations.of(context)!;
     final feed = logic.tab == 0;
     final content = PopScope(
       canPop: false,
@@ -275,7 +273,7 @@ class _HomeTabsState extends State<_HomeTabs> {
         backgroundColor: AppColors.transparent,
         resizeToAvoidBottomInset: false,
         body: _body(context),
-        bottomNavigationBar: logic.videoImmersive ? null : _nav(context, l10n),
+        bottomNavigationBar: logic.videoImmersive ? null : _nav(context),
       ),
     );
     return AnnotatedRegion<SystemUiOverlayStyle>(
@@ -451,31 +449,11 @@ class _HomeTabsState extends State<_HomeTabs> {
     );
   }
 
-  Widget _nav(BuildContext context, AppLocalizations l10n) {
-    return AppBottomNav(
+  Widget _nav(BuildContext context) {
+    return AppRootBottomNav(
       barKey: const Key('home-tabs-bar'),
-      dark: logic.tab == 0,
-      items: [
-        _navItem(context, l10n, AppRootTab.home),
-        _navItem(context, l10n, AppRootTab.recommend),
-        _navItem(context, l10n, AppRootTab.following),
-        _navItem(context, l10n, AppRootTab.mine),
-      ],
-    );
-  }
-
-  AppBottomNavItem _navItem(
-    BuildContext context,
-    AppLocalizations l10n,
-    AppRootTab tab,
-  ) {
-    return AppBottomNavItem(
-      tabKey: tab.tabKey,
-      icon: tab.icon,
-      selectedIcon: tab.selectedIcon,
-      label: tab.label(l10n),
-      selected: logic.tab == tab.index,
-      onTap: () => _selectTab(context, tab.index),
+      selected: AppRootTab.values[logic.tab],
+      onSelected: (tab) => _selectTab(context, tab.index),
     );
   }