mod: 修改设置与无障碍描述

lib/pages/preview/view.dart

@@ -136,7 +136,7 @@ class _ImagePreviewState extends State<ImagePreview>
       body: Stack(
         children: [
           Semantics(
-            label: '双指缩放、长按保存、左右滑动切换图片',
+            label: '长按保存',
             child: GestureDetector(
               onLongPress: () => onOpenMenu(),
               child: ExtendedImageGesturePageView.builder(

lib/pages/setting/play_setting.dart

@@ -114,7 +114,7 @@ class _PlaySettingState extends State<PlaySetting> {
           ),
           const SetSwitchItem(
             title: '竖屏扩大展示',
-            subTitle: '小屏竖屏视频由16:9扩大至5:4展示（！暂不支持临时收起）',
+            subTitle: '小屏竖屏视频宽高比由16:9扩大至4:5（！暂不支持临时收起）',
             setKey: SettingBoxKey.enableVerticalExpand,
             defaultVal: false,
           ),

lib/plugin/pl_player/view.dart

@@ -448,7 +448,7 @@ class _PLVideoPlayerState extends State<PLVideoPlayer>
           right: 15,
           bottom: 15,
           child: Semantics(
-            label: '双击开关播放控件，左右滑动调整进度',
+            label: '双击开关控件',
             child: GestureDetector(
               onTap: () {
                 _.controls = !_.showControls.value;