feat: custom spring (#304)

lib/common/widgets/spring_physics.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/cupertino.dart';
+import 'package:PiliPlus/utils/storage.dart';
+
+class CustomTabBarViewScrollPhysics extends ScrollPhysics {
+  CustomTabBarViewScrollPhysics({super.parent});
+
+  @override
+  CustomTabBarViewScrollPhysics applyTo(ScrollPhysics? ancestor) {
+    return CustomTabBarViewScrollPhysics(parent: buildParent(ancestor)!);
+  }
+
+  @override
+  SpringDescription spring = SpringDescription(
+    mass: GStorage.springDescription[0],
+    stiffness: GStorage.springDescription[1],
+    damping: GStorage.springDescription[2]
+  );
+}
+
+final customTabBarViewScrollPhysics = CustomTabBarViewScrollPhysics();