fix(recommend): 收窄拖动清屏范围并提升灵敏度

lib/pages/player/widgets/home_feed_overlay.dart

@@ -3,6 +3,7 @@
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:video_player/video_player.dart';
 
@@ -18,11 +19,11 @@ import 'seek_progress_bar.dart';
 part 'home_feed_overlay_parts.dart';
 
 const double _progressHeight = 2;
-const double _progressHitHeight = 28;
+const double _progressHitHeight = 32;
 const double _pageHorizontal = 14;
 const double _railRight = 8;
 const double _railGap = 12;
-const double _bottomInfoInset = 20;
+const double _bottomInfoInset = 32;
 const double _railBottomOffset = 60;
 const List<Shadow> _boostTextShadows = [
   Shadow(color: AppColors.shadow, blurRadius: 5, offset: Offset(0, 1)),

lib/pages/player/widgets/home_feed_overlay_parts.dart

@@ -129,6 +129,7 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
           child: GestureDetector(
             key: const Key('home-feed-progress'),
             behavior: HitTestBehavior.opaque,
+            dragStartBehavior: DragStartBehavior.down,
             onHorizontalDragStart: interactive
                 ? (details) => _startScrub(details.localPosition.dx / width)
                 : null,