fix(player): 统一暂停按钮并自动隐藏控制层

lib/pages/player/widgets/home_feed_overlay.dart

@@ -55,7 +55,7 @@ class HomeFeedOverlay extends StatelessWidget {
             child: Align(
               alignment: Alignment.centerRight,
               child: Padding(
-                padding: const EdgeInsets.fromLTRB(0, 0, 10, 12),
+                padding: const EdgeInsets.fromLTRB(0, 0, 12, 16),
                 child: _rail(),
               ),
             ),