fix(player): 调整 rail 倍速弹窗与进度时间

test/home/home_preview_layout_test.dart

@@ -61,6 +61,10 @@ void main() {
       find.byKey(const Key('home-feed-episode')),
     );
     expect(episodeRect.left, lessThan(cardRect.center.dx));
+    final railCenter = tester.getCenter(find.byKey(const Key('rail-like')));
+    final railBottom = tester.getBottomLeft(find.byKey(const Key('rail-save')));
+    expect(railCenter.dy, greaterThan(844 * 0.4));
+    expect(railBottom.dy, lessThan(cardRect.top));
     expect(find.byKey(const Key('home-feed-follow-series')), findsOneWidget);
     expect(find.byKey(const Key('home-feed-episodes')), findsOneWidget);
     for (final key in const [Key('home-feed-search'), Key('home-feed-more')]) {