opt: appbar theme

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

lib/pages/history/view.dart

@@ -73,12 +73,7 @@ class _HistoryPageState extends State<HistoryPage> {
       appBar: AppBarWidget(
         visible: _historyController.enableMultiple.value,
         child1: AppBar(
-          titleSpacing: 0,
-          centerTitle: false,
-          title: Text(
-            '观看记录',
-            style: Theme.of(context).textTheme.titleMedium,
-          ),
+          title: Text('观看记录'),
           actions: [
             IconButton(
               tooltip: '搜索',
@@ -134,8 +129,6 @@ class _HistoryPageState extends State<HistoryPage> {
           ],
         ),
         child2: AppBar(
-          titleSpacing: 0,
-          centerTitle: false,
           leading: IconButton(
             tooltip: '取消',
             onPressed: () {
@@ -151,7 +144,6 @@ class _HistoryPageState extends State<HistoryPage> {
           title: Obx(
             () => Text(
               '已选择${_historyController.checkedCount.value}项',
-              style: Theme.of(context).textTheme.titleMedium,
             ),
           ),
           actions: [