feat(player): 首页进详情与播放页改为淡入转场

lib/core/navigation/fade_page_route.dart

@@ -0,0 +1,17 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/widgets.dart';
+
+/// 无位移的短促淡入转场。
+class FadePageRoute<T> extends PageRouteBuilder<T> {
+  FadePageRoute({required WidgetBuilder builder, super.settings})
+    : super(
+        transitionDuration: const Duration(milliseconds: 220),
+        reverseTransitionDuration: const Duration(milliseconds: 180),
+        pageBuilder: (context, _, _) => builder(context),
+        transitionsBuilder: (context, animation, _, child) => FadeTransition(
+          opacity: CurvedAnimation(parent: animation, curve: Curves.easeOut),
+          child: child,
+        ),
+      );
+}